I can only recommend manga. Seeing as I live in a full house & risk being walked in at any time of day or night.
I prefer the complex long ones.
The one shots tend to have a "they will, but when & how" story with a paper thin plot & one or both guys act like virginity is something that needs to be preserved instead of gotten rid of as quickly as possible (being a virgin is humiliating for men) & that first kisses are special....Just bad writing & too much melodrama.
I like something with character development, love polygons, a meddling overprotective brother who gets in the way, an element of taboo, an actual story.
But sometimes I just want smut that's really nicely drawn & either has a good story or is silly or is just extremely obscene & wrong.
Sadly those two things never seem to cross over. The first one is usually classic BL where no one has sex until the last volume.
So do you want smut or do you want plot?
Anyway, the best places to look are:
TV Tropes:
link
Baka Updates Manga:
link
*Look for a manga you like.
*Check out the CATEGORIES & expand to show all.
*Use categories to find tropes like "slow romance" "love triangle" "teacher student" "bdsm" "uke falls in love first"...Stuff like that.
*Alternately, you can go up to GENRE & click on Yaoi. It will take you to a refined search engine where you can exclude & include alternate genres, doujinshis, fully scanlated series, etc.