Don't rely on LFG. If you play with someone in a strike or in a round of crucible that you think is a good player, reach out to them. Get to know them and help them tackle a Quest or two, see if they are the type of person that you like to hang out with. If so simply making a point while you are doing bounties or taken care of inventory at the reef or tower, send them a chat invite and just ask them how their day is going. I have this kind of relationship with over 15 people because I make the effort to do so. I feel as though people are more than a means to an end in Destiny, there are real people behind those guardians.