I've noticed that most yaoi or bl manga are there only for the purpose of being yaoi or bl which is understandable but I've kind of grown bored of the 'manga starts with guy seeing guy he likes- manga ends with those dancing, in bed, naked, with hard pipes'

I was wondering if there were any manga (shonen ai included obviously) where the major plot points lie in the adventure or story, i prefer action or adventure or mythological or scifi stuff or some combination but at this point I'll take about anything.

Basically what I'm asking for is every action /adventure /scifi manga but with the main couple or character being hella hella gay, i don't even mind if it's just one of the characters in the main team thats gay, so long as they get some romance and action. I also don't mind if there isn't any nsfw stuff either since i know that limits options on this kinda stuff alot. So far I've only read one manga like this and i can't remember it's name or find any more.

I also wouldn't mind if it's slice of life, so long as the MC's whole life doesn't revolve around 'I'm gay' or 'gotta get that D'. like it can include that but not on its own, like maybe family or work drama or running a business or i dunno something, anything.

I recommend you Yellow, it's the best for me.

1001 Nights
Ciel maybe
Fake maybe
Golden Days
Tokyo Babylon (and its sequel X)
Yuureitou maybe

For slice-of-life stuff that's not about being gay, I recommend What Did You Eat Yesterday?

Otona no Mondai might also interest you.

EDIT: Forgot that there was also the dark dramatic stuff like Saezuru Tori wa Habatakanai and Acid Town. I'm not a huge fan of them, but maybe they'll interest you.

yup Saezuru Tori wa Habatakanai is a must read but also
NightS from the same author fits your description and hmmm...

Sakuhin Number 20 about certain painting and discovering it's mysterious history, amazing manga
Ichigo no Yume - Shimatsuya Risuke no Kaii Jikenchou - it's a great manga, a bit of a crime story, a bit adventure and a bit of a horror - highly recommended
Nemureru Tsuki another great one, this time it's about ancient curse and finding a way to take it off
Simple Days next one from MIYAMOTO Kano sensei, in general she's good at stories with strong plot, BL is just an excuse for her to write a good story, if you liked those above you'll like also Onigari no Mori de
Stanley Hawk no Jikenbo - Kamen - American style crime story and maybe Limiter another crime story

have fun!

I'm not a lolicon