How about this. Within the relevant areas at the tower, there is something players can interact with that triggers a lfg for those in the tower. Perhaps there is a subtle on-screen prompt to all players that an lfg is active in their tower. Itd be cool to hang out near shaxx when looking for a friendly crucible game. Or near Cayde when wanting to put together a stash hunting party etc... An easy way for players to identify and organize themselves in the social space Reward people for using the Tower Matchmaking System and boom bam, major boost to the Towers appeal outside of a quick pitstop