How about having a 
on the profile? It wouldn’t necessarily need to mean that you identify as lgbt+, but that you belong with the community.
edit: I kind of tried this out on Trustroots, they have a tagline field and when you use it with emojis, it’s more or less presented like badges/stickers on your profile. Realized one sticker looks weird, but something more like three can look nice:
So I’m having this calm, homey lifestyle right now. But could have many combinations there, like
or
Could this be a fun way to give some flavour to profiles in list views or else? Could also be a way how to visualize the proposed personality test? Well, like this it would be more expressive about lifestyle choices.