do you mean shounen ai? check out furuya nagisa's works like this one http://www.mangago.zone/read-manga/kimi_wa_natsu_no_naka/
I guess Heeso in class 2 is a good one, the main couple is honestly very pure and refreshing, kind of paced like a shoujo manga/manhwa but it's less frustrating. Although I don't really like the second couple that much.
I would also recommend "A trace of you" it's paced a little faster with only 21 chapters, a little confusing but it's heartwrenchingly cute with a hint of angst
Any good Shounen Ai with a meaningful story/good plot? And the relationship isn't subtle but recognizable, not brotherhood but more like " damn these two guys do love each other without all the sex ". I guess sth like Seven Days? (づ ̄ ³ ̄)づ