I've been getting back into comics lately, and would like to read some Steampunk -- it seems like a cool aesthetic. I could do a google search, but I really don't trust any 'listicles' outside of manga.
Is there a steampunk equivalent of Akira or FMA?
Not sure what you mean by "canonical" in this case. That just means official.. So I guess original and not a derivative work?
Not sure about regular comics at all, but I know one web comic if that counts. https://www.girlgeniusonline.com/comic.php?date=20021104
There might be some manga too, I'll check later.
Ah, I just meant the most famous or influential ones. Like Rambo for 80s movies or Nirvana for grunge.
Well I'll second Girl Genius. It's a solid comic with lots of content, a solid story, and is about as far from woke as any content can be I think, despite what some might assume from its name. It's been going for about twenty years I think, with M-W-F updates. Some 'filler' strips here and there, but overall a lot of good story to dig into. Since you brought up FMA in the main post, I can say there are some similarities for sure. Just replace 'Alchemy' with the 'Spark' which gives some people an ability to concduct physics-defying 'Mad Science'.
If you ever read the old Dragon magazines back when those were a thing, you might recognize the art style. Girl Genius is made by the same people who did What's New with Phil & Dixie back in Dragon.