#tiny titans

Robin #80, Robin #82-#84, #87-88 (Steph's next important arc I really dislike #82-#83 because I feel it dumbs Steph down to make the plot work, and think those issues are skippable, but it's up to you)

Robin #92-94

Joker: Last Laugh #3, Robin #95 (both semi-major apperances) Last Laugh #6 (minor appearance) (pretty mid crossover, so you can skip it if you want, hard to place in the timeline too)

Batman: Gotham Knights #22

Green Arrow #5 (four page appearance, enjoy it a lot for Steph roasting Batman but not essential to her arc)

Robin #98, Birds of Prey #39 (minor appearance)-40, Robin #99

Young Justice #49-51 (VERY minor appearances, but she gets to be part of a big teamup!)

Batgirl (2000) #20-21, #26-#28 ( Some of my favorite writing for Steph! Cass and Steph's friendship is one of my fave relationships in comics. )

Batgirl #32-33 (On the other hand, I'd advise skipping this filler two parter by Dixon. Incredibly mediocre and acts like Cass and Steph aren't friends. I'd have to put it between after Robin #88 but before Batgirl #20/21 to make sense of it, but why go through the effort)

It's time for Jon Lewis' run on the Robin title, also some of my all time favorite writing for Steph! I really suggest simplifying just reading #100-#120, it's all great character work for Steph and Tim. Onto the chronology:

Robin #100-105 (Robin #101 is part of the World Without Young Justice crossover ft. StephRobin! Reading the whole crossover isn't necessary, but the list of issues are here if you do want to)

Young Justice #54 (minor appearance but follows up on #30. Young Justice is another comic I just recommend the entirety of!)

Birds of Prey #43 (minor 3 page appearance, very perfunctory about booting Steph off the team. Skippable)

Robin #106 (Big conversation about events with Steph but she's not in it. But uh. this is really contradictory timelinewise to Gotham Knights 37 no matter what order you put things in. Since GK going first would spoil (heh) a bigger twist in 107 though, I’d suggest using this reading order)

Batman: Family (good little miniseries, Steph appears in #2 and #8)

Robin #107-111

(content warning for Robin #111 for a backstory involving an adult attempting to sexually assault a child, not shown, handled fairly well imo (especially for comics), with the psychological impact fully explored)

Gotham Knights #37 (This is a great issue if you want to despise Bruce Wayne, but if you don't feel like seeing him be horrible and crush Steph, you can skip it, they basically covered what happened in Robin.) (Again, this should not go here timelinewise But if I don't put it here, we spoil the events in Robin #107-111.)

Robin #112-113 #116, #119, #120 (Again, I suggest just reading 100-120 to simplify)

Batgirl #38

Robin #120-#125 (these aren't especially good comics, so you can skip if you feel like it, but it is leadup to Steph's tenure as Robin. Speaking of which...)

Steph as Robin:

Robin #126

Batgirl #53

Detective Comics #796

Teen Titans #13 (more minor appearance, could be skippable)

Solo #10 "Second Chance" (published way after the others, but it's great)

Robin #127-128

Batgirl #54 (minor appearance, but heartbreaking)

Then we have War Games, in which Steph is sexualized while being brutally tortured and then dies. Don't read this, it's bad. You just have to know she dies.

Batgirl #61 (minor, one page)-62, #72 (one page but what a page)-73 (ghostly appearances by Steph)

Robin #170-#174 (Steph's return-from-the-dead arc)

(Steph is also technically in the Gotham Underground series, but it's very confusing, contradicts stuff in other comics as well as logic, features no real character development and is totally skippable).

Robin/Spoiler Special

Teen Titans #66 (cute but not essential)

Robin #175-#183 (Not good imo, just very forced drama that's ooc, so I'd skip it, you just have to know that Steph and Tim have a falling out)

Gotham Gazette: Batman Dead? and Gotham Gazette: Batman Alive? (not essential, but it's decent stuff I guess)

Red Robin #2 (minor appearance that's mostly Tim yelling at Steph, but it does really impact her emotionally in future issues)

And finally, we get to Steph's time as Batgirl, and her critically acclaimed Batgirl series!

Steph as Batgirl

Batgirl (2009) #1-#7

World's Finest (2009) #3-#4 (Steph meets Supergirl)

The Web #3 (completely skippable)

Red Robin #9, Batgirl #8, Red Robin #10-#12 (crossover with Red Robin, Tim's title at the time)

Wonder Woman #600 (VERY minor appearance, but it's so cool to see her team up with Wondy! And it means she gets drawn by George Perez!)

Batgirl #9-14

Bruce Wayne- The Road Home: Batgirl #1

Batman: The Return (minor, 2 page, super skippable)

Red Robin #15, #20 (both minor 1-2 page appearances)

Batgirl #15-#24

Batman Incorporated Special #1

And that's it for preboot Steph. I am not an expert on her appearances after this era.

I'm not going to list all the alternate continuities she appears in, you can look around the Steph wiki for that, but here's some recs:

Batgirl: Futures End #1 "Darker in the Soul" (Potential Future where Steph is part of a League of Batgirls)

The All New Batman: The Brave and the Bold #13 (time traveling Robins teamup featuring lots of Steph)

DCeased: Hope at World's End (Steph suits up as Robin for the zombie apocalypse)

Future State: The Next Batman #2, #4 (Almost entirely for edgy future Steph w/ her gay haircut and eyepatch, but also some nice StephCass stuff and drama etc)

She's also in the webtoon Wayne Family Adventures--it's all ages and tonally different, so Steph is flattened a bit and some Steph fans don't like it, but I've seen it be an entry point for a lot of new Steph fans and tbh, I just think it's cute and like seeing people actually be nice to her for once.