devtrackers.gg
this is not world of warcraft .... so why Raid don't have Matchmaking? anyway Its little more impossible to get all 7 friends together in same time ... so I don't know can you Add matchmaking or we can take a break forever from this game ? 
An official statement on the matchmaking decision can be read here.
While clans are a dependable option for finding other players to raid with, our Discord, Forums, and unofficial Reddit all have Looking For Group channels that you can use to find other like-minded players. As the team has stated, the Raid requires very good communication, frequently and consistently. That said, I appreciate the feedback on display here nonetheless.