RE: "Mark the End of Pride Month with Marvel"
— news.marvel.com I am impressed at both the quantity and quality of LGBTQ characters in the Marvel universes. ( I really need to look into Mystique and Destiny! ) Though not mentioned in this article, I’m also impressed that certain NON LGBTQ+ characters have counterparts in alternate realities where they ARE LGBTQ+, like Colossus in Ultimate X-men [2001-2005] and Wolverine in X-treme X-men Vol. 2 [2012-2014]. I can’t vouch for intention, but I found these particular representations to casually normalize that representation—in a positive way!—by using the scientific theory: parallel universe theory. Infinite realities mean infinite possible versions of you and ALL of them are perfect. :)
( I hope that made sense. ^^;; )
UPDATE [2019/08/29] :
I have personally verified the following characters as being LBGT+, in addition to those I've already verified ( America Chavez, Colossus [ Ultimate X-Men ], Hulkling, Wiccan, and Wolverine [X-Treme X-Men] ):
Sera ( How have they not mentioned her? She's TRANSGENDER!!! )
For sources, feel free to visit 'My List of Canons'. <3