LF public chat / club to play 5/5 normals with (pref gold+)

Hey, I'm looking for teammates to increase my chances of getting key fragments. Currently, I often don't have friends online to play with so I've been looking for a group to join (public chat or club, I don't care). I was Diamond V last season, I usually pick fill as role. Because of the great MMR difference with silver players and because I prefer playing supportive champs over carry champs, I would love to find a gold+ (or plat +) group, doesn't have to be strictly gold+, just a group that isn't filled with silver and bronze.