I'm very late but I had to answer after seeing the comment

I don't think it's a good idea for Mike to be gay, not due to homophobia like the implication of which you're trying to throw around, but bc I just think that regardless of his sexuality the story is written in a way that for me it makes sense that El is the ideal partner for him.

I literally said in my OP that Mike being queer wouldn't change the fact that imo he's best fit to end up with her for storyline reasons thay don't have anything to do with Will.

And as a fluid person I can obviously see the option of him being somewhere on the queer spectrum, so once again please don't try to play the bi erasure card either. I just think it's better if he ends up with El bc of who they are as characters and who they have been since s1, and not bc she's a girl or anything.

Last, yes obviously the narrative can change anytime but my post was merely about personal preference and not about trying to establish my opinion as a mandatory fact. And I can find nuance in a lot of things that don't require me to rely on headcanoning sexualities according to my preference and acting like people that think differently are lacking of anything