LFG
Resources to help you find a fireteam and a list of upcoming clan events
Find Fireteam
The old bungie.net fireteam solution before they made fireteam finder. It allows for custom post names and usually has higher quality players.
Fireteam Finder
The new bungie fireteam tool, integrated ingame so far more people use it for better or worse.
Discord LFG
The main discord lfg, they have dozens of voice chat rooms and players here usually perfer discord to gamechat