Honestly? Not really. I've been very close to finding some, Triple Lovers and Double Beastly Trouble both come to mind although the love expressed between the tops is still vague and not particularly shown through romantic love aside from maybe a kiss and both stories have issues with dubcon or just straight noncon so I wouldn't recc unless you can get past that part. I'm still searching though and if you're looking for just a good poly even if it's not explicitly yaoi, I'd recommend Lovebot on WT cause it starts with what I thought would be a monogomous relationship but had a throuple develop and they were very healthy <3 (Might go read that again cause I need a palette cleanser fr)

I'm TIRED of this same trope OMG, I gotta rant. I swear authors have like ALMOST got the formula to good story, TWO OR MORE LOVE INTERESTS = POLYCULE, but they SKIPPED the loving part being with ALL of them, and just want the two tops to only like the bottom and I'm so over it. I can just barely find polycule thats ACTUALLY polycule. This isn't a love triangle, as in they're all connected to each other, its an arrow >:/ IM SICK OF ARROWS, GIMME WHAT I WANT, authors are too scared of tops wanting to bottom, IS THAT IT? CHICKEN, YOU'RE CHICKEN, DO IT, MAKE ONE A VERS, YOU WON'T!
Ahem, anyway, 7/10, make polycules fully love eachother again.