are we allowed to recommend fics? if so, i recommend heaven scent by snowbunnylester. it's an a/b/o fic and it's really good
Heaven Scent - Dan Howell rarely leaves the house unless he has too, too socially awkward to function normally around other people, and generally making his only friends through Louise, a sweet beta who took him under her wing a few years back when they were both still in college. It’s no surprise, then, that the omega has yet to find a mate, despite craving one rather a lot. It’s not until he attends Louise’s birthday party and gets accidentally-on-purpose set up with an attractive alpha named Phil Lester who smells absolutely heavenly that Dan starts to fall into a proper romance, complete with courting and scenting and the like.