Monster Theory - Really great anthology to start with, especially the first reading, Jeffrey Jerome Cohen's famous "Monster Culture (Seven Theses)" which is a personal favorite

The Journal of the Fantastic in the Arts - A general SF/F journal, but there are definitely a lot of great monster theory and gothic horror readings sprinkled throughout. Consider taking a look at Veronica Hollinger's "The Vampire and/as Alien," the special issue on Dracula, and Faye J. Ringel's "Genetic Experimentation: Mad Scientists and the Beast," among others

Werewolf Histories edited by Willem Blécourt - Phenomenal anthology on werewolf scholarship, especially if you're interested in the connections between werewolves and witchcraft and/or witch trials in Early Modern Europe

Skin Shows: Gothic Horror and the Technology of Monsters by Jack Halberstam - Of interest to those who are interested in the connection between the gothic and gender (among other topics). Halberstam has written extensively on both

The Journal of Dracula Studies - Exactly what it sounds like.

Preternature: Critical and Historical Studies on the Preternatural - Another journal, which focuses on the connections between witchcraft and occultism, monsters, demonology, and the like.

Susan Stryker's "My Words to Victor Frankenstein Above the Village of Chamounix" - An absolutely landmark piece of writing on Frankenstein and the transgender (and in particular the transfeminine) experience; one of my favorite pieces of academic writing of all time.

Speaking of Monsters: A Teratological Anthology - Another solid monster theory anthology

Arts of Living on a Damaged Planet: Ghosts and Monsters of the Anthropocene - A really, really good anthology about the ecological gothic that I cannot recommend enough. As a known werewolf guy I especially like the piece "Wolf, or Homo homini lupus" by Carla Freccero

The Vampire Lectures by Lawrence Rickels - So many vampires

Monster Culture in the 21st Century: A Reader - Another anthology, I in particular recommend Rosalind Sibielski's "Gendering the Monster Within: Biological Essentialism, Sexual Difference, and Changing Symbolic Functions of the Monster in Popular Werewolf Texts" in this one.

"The Trans Legacy of Frankenstein" by Jolene Zigarovich - Definitely a good read if you enjoyed the Stryker piece earlier; it's a more general survey of the idea but might give you some ideas for further reading

TransGothic in Literature and Culture - A whole anthology of works on transgender identity and the gothic!

Twenty-First Century Gothic: An Edinburgh Companion - Not to be confused with the other similarly named anthology earlier, this one is on various modern perspectives on the gothic.

"Christians and Jews in the Twelfth Century Werewolf Renaissance" by David A. Shyovitz - Stand-alone article but really really interesting

Wonders and the Order of Nature: 1150-1750 by Lorraine Daston & Katherine Park - Incredible volume that gets into several different subjects surrounding the fantastical in the medieval and early modern eras, monsters among them. The same authors have written some other fantastic work, such as "Unnatural Conceptions: The Study of Monsters in Sixteenth- and Seventeenth-Century France and England" and I honestly would recommend any of their work.

Monster Anthropology: Ethnographic Explorations of Transforming Social Worlds Through Monsters - A more anthropology focused volume, I particularly like Rozanna Lilley's "Drawing in the Margins: My Son's Arsenal of Monsters—(Autistic) Imagination and the Cultural Capital of Childhood"

Marvels, Monsters, and Miracles: Studies in the Medieval and Early Modern Imaginations - Another anthology, this time with a historical perspective

Sure! This is something I was taught at drama school and it's been great advice for me both in acting and in life.

We were rehearsing a play and one of the actors was struggling a bit with a scene (it was Macbeth, I think). He said something like, "I'm just not very confident!" and our facilitator said, "Confidence is bullshit. It's bullshit used to sell self-help books. Do you know your lines? Have you done your preparation? Are you warmed up? Then you are entitled to go on stage and command the audience's time and attention. If you haven't done those things, then you're a professional actor - you know what you have to do to be ready - go do it! Whether you're confident or not simply isn't relevant." And the actor internalised that advice and he went out and gave an absolutely cracking turn as Macbeth!

Anthony and Cleopatra: here's the BBC version, here's a 2017 version.

As you like it: you'll find here an outdoor stage adaptation and here the BBC version. Here's Kenneth Brannagh's 2006 one.

Coriolanus: Here's a college play, here's the 1984 telefilm, here's the 2014 one with tom hiddleston. Here's the Ralph Fiennes 2011 one.

Cymbelline: Here's the 2014 one.

Hamlet: the 1948 Laurence Olivier one is here. The 1964 russian version is here and the 1964 american version is here. The 1964 Broadway production is here, the 1969 Williamson-Parfitt-Hopkins one is there, and the 1980 version is here. Here are part 1 and 2 of the 1990 BBC adaptation, the Kenneth Branagh 1996 Hamlet is here, the 2000 Ethan Hawke one is here. 2009 Tennant's here. And have the 2018 Almeida version here. On a sidenote, here's A Midwinter's Tale, about a man trying to make Hamlet. Andrew Scott's Hamlet is here.

Henry IV: part 1 and part 2 of the BBC 1989 version. And here's part 1 of a corwall school version.

Henry V: Laurence Olivier (who would have guessed) 1944 version. The 1989 Branagh version here. The BBC version is here.

Julius Caesar: here's the 1979 BBC adaptation, here the 1970 John Gielgud one. A theater Live from the late 2010's here.

King Lear: Laurence Olivier once again plays in here. And Gregory Kozintsev, who was I think in charge of the russian hamlet, has a king lear here. The 1975 BBC version is here. The Royal Shakespeare Compagny's 2008 version is here. The 1974 version with James Earl Jones is here. The 1953 Orson Wells one is here.

Macbeth: Here's the 1948 one, there the 1955 Joe McBeth. Here's the 1961 one with Sean Connery, and the 1966 BBC version is here. The 1969 radio one with Ian McKellen and Judi Dench is here, here's the 1971 by Roman Polanski, with spanish subtitles. The 1988 BBC one with portugese subtitles, and here the 2001 one). Here's Scotland, PA, the 2001 modern retelling. Rave Macbeth for anyone interested is here. And 2017 brings you this.

Measure for Measure: BBC version here. Hugo Weaving here.

The Merchant of Venice: here's a stage version, here's the 1980 movie, here the 1973 Lawrence Olivier movie, here's the 2004 movie with Al Pacino. The 2001 movie is here.

The Merry Wives of Windsor: the Royal Shakespeare Compagny gives you this movie.

A Midsummer Night's Dream: have this sponsored by the City of Columbia, and here the BBC version. Have the 1986 Duncan-Jennings version here. 2019 Live Theater version? Have it here!

Much Ado About Nothing: Here is the kenneth branagh version and here the Tennant and Tate 2011 version. Here's the 1984 version.

Othello: A Massachussets Performance here, the 2001 movie her is the Orson Wells movie with portuguese subtitles theree, and a fifteen minutes long lego adaptation here. THen if you want more good ole reliable you've got the BBC version here and there.

Richard II: here is the BBC version. If you want a more meta approach, here's the commentary for the Tennant version. 1997 one here.

Richard III: here's the 1955 one with Laurence Olivier. The 1995 one with Ian McKellen is no longer available at the previous link but I found it HERE.

Romeo and Juliet: here's the 1988 BBC version. Here's a stage production. 1954 brings you this. The french musical with english subtitles is here!

The Taming of the Shrew: the 1980 BBC version here and the 1988 one is here, sorry for the prior confusion. The 1929 version here, some Ontario stuff here, and here is the 1967 one with Richard Burton and Elizabeth Taylor. This one is the Shakespeare Retold modern retelling.

The Tempest: the 1979 one is here, the 2010 is here. Here is the 1988 one. Theater Live did a show of it in the late 2010's too.

Timon of Athens: here is the 1981 movie with Jonathan Pryce,

Troilus and Cressida can be found here

Titus Andronicus: the 1999 movie with Anthony Hopkins here

Twelfth night: here for the BBC, here for the 1970 version with Alec Guinness, Joan Plowright and Ralph Richardson.

Two Gentlemen of Verona: have the 2018 one here. The BBC version is here.

The Winter's Tale: the BBC version is here

Please do contribute if you find more. This is far from exhaustive.