If you have some glee fanfic suggestions please share.
There are a few popular fic suggestions here and here for both Brittany/Santana (Brittana, the canon pairing) and Rachel/Quinn (Faberry, one of the fan-favorite pairings).
I just saw that Britana (that the name?) was a pretty popular ship in general so I didn't think they were treated like shit. That kinda sucks. You got like, any examples?
Many, but here's one. The two girls break up when one of them graduates and fears she might cheat. The other girl (who is bi) gets hit on by a dude. She tells him they can't be together because she's afraid that a mob of angry lesbians from the Internet will kick his ass (out-of-nowhere fourth wall breaking). Then she hooks up with the guy anyway because "love is love" and people need to learn to respect that or some shit. Probably one of the biggest middle fingers to a fanbase I've ever seen. The girls do get back together later on, for what it's worth.
But what am I supposed to watch instead? :/
Well, you could watch the first three seasons of Warehouse 13, if you're into scifi-ish stuff.
I don't think you've mentioned watching Sense8, it sounds interesting and it has a lesbian couple. Lost Girl is pretty good for girl-on-girl action (but not so much for the plot from what I've heard?).
Sorry, I'm basically throwing stuff at you here, I just really want to keep you from watching Glee lol. But I guess if you can stomach bad TV, it would be an... interesting experience. Keep us updated if you do watch it!