UFO Grendizer/Grendizer U (TV Series): Here's the Mazinger inclusion we kinda need at this point. Grandizer (which is apparently spelled Grendizer with an E, not really sure about that choice but okay) is the third Mazinger series from the 70's, and has had a strange resurgence in presence in the last couple years, with both the new Grendizer U anime and a current generation video game based on the original 70s series. Really don't get it myself but I'm happy to see it. Grendizer on the surface sounds like possibly the most interesting of the original Mazinger trilogy of series, but has lost a lot of prominence with the appearance of things like Mazinkaiser and Shin Mazinger. I think this is one we need to see again, and clearly someone with some actual influence seems to agree with me on that point.

Hades Project Zeorymer (OVA): A high quality 80's OVA loosely based on a short manga series definitely aimed at adult audiences, Zeorymer also has a strange bit of current day attention being brought to it as an upcoming DLC unit in the recently released Iron Saga VS fighting game. As a beautifully animated dark sci-fi mecha series, Zeorymer always kinda feels unfinished, but the OVA did a good job making that ambiguity part of the appeal. Zeorymer has been one of the legendary powerhouse mechs in other SRW games, primarily SRW J, where the manga based Great Zeorymer first showed up, but it would be nice to see the original again. Heck, I'd be interested in seeing the other Hakkeshu mechs being playable.

Zoids New Century Zero (TV Series): Honestly, any Zoids series would be a fantastic inclusion, as the franchise really doesn't get as much attention as it deserves. Zoids keeps chugging along in the background of toy and model franchises, continuing to have new releases even today, but their anime heyday was in the early 2000s, when New Century Zero and Chaotic Century/Guardian Force were internationally known thanks to Toonami. Also, mecha animals are awesome and I'd love a modular Liger to use as a regular member of my squad. I chose New Century Zero because I don't think it's ever had proper story inclusion in the SRW series.

Mobile Suit Gundam AGE (TV Series): Available to stream free on Tubi just like Gundam X, but I don't know how much I can recommend this one. AGE is a facinating story about the experiences and motivations of three generations of pilots for the AGE series of Gundams, originally developed by Flit Asuno and later inherited by his son and grandson. For the first three arcs, AGE weaves a story about the dangers of allowing personal trauma to disconnect you from empathy, with each generation growing in terms of personal motivations reflecting how they deal with their own pain and difficulties. It's kinda bad in regards to the treatment of women in the show (who rarely get to be dynamic and interesting characters), but the real failure comes with the fourth arc, where the show completely drops the ball on its message by failing to commit to the character paths they clearly set up throughout the series. But hey, SRW has improved interesting but flawed shows before (Cross Ange and Unicorn being good examples), so maybe there's some magic they can work with AGE, too.

Bang Brave Bang Bravern (TV Series): Super robot anime, modern successor the Brave franchise from the 90s, and plenty of homoeroticism. I kinda don't need to go any further than that.

Lord of Lords Ryu Knight (TV Series): Don't be fooled by the cutesy designs. Taking place in a fantasy world, the series tells the story of a group of pilots who have inherited the Ryu mechs. These machines are the key to facing an oncoming threat from beyond the planet, but in the time since they were last needed, their power has somewhat faded. A cast of RPG style characters in RPG style machines (which each have official classes based on those games) makes for a fun fantasy experience that is just serious enough for its own good.

Rayearth (OVA): I'll be honest, I'm not the biggest fan of this story in comparison to the original version, but that largely has to do with their character assassination of Eagle Vision. Everything else in here is fantastic, from character and mechanical designs to the re-imagined story about the importance of accepting the shifting and transient nature of life and relationships. Seriously, just replace Eagle with Debonair and you have a short version of Rayearth that can stand alongside its more famous sisters. If nothing else, the OVA designs could be a really cool mid-season upgrade for the original trio of machines.