All of these links will take you to the fic on Ao3. Make sure to check the tags before reading and kudos the author! They're doing this for free it's the least we can do :)
Troy and Abed Getting Married by writtingcrap67
As the title suggests, Troy and Abed Getting Married! Currently incomplete but it's cute
Trobed Week Oneshots by Lilogirl
Cute Trobed oneshots because we don't have enough of those
TW:The first one is Abed havong a meltdown (and Troy taking care if him) so again, check the tags!