CP 0 (2,167-2,256 / Cloudy, Partly cloudy 2,709-2,821)
Difficulty: 5, counters: Fighting, Ground, Steel, Water, Grass
CP 41,693 (1,432-1,505 / Fog, Sunny / clear 1,790-1,882)
Difficulty: 5, counters: Fighting, Bug, Fairy
CP 18,606 (1,487-1,561 / Windy 1,859-1,951)
Difficulty: 2, counters: Ice, Dragon, Fairy
CP 16,865 (1,531-1,608 / Partly cloudy, Windy 1,914-2,010)
Difficulty: 2, counters: Fighting
CP 16,253 (1,314-1,384 / Cloudy, Rainy 1,643-1,730)
Difficulty: 2, counters: Grass, Electric
CP 2,903 (486-529 / Fog, Windy 608-662)
Difficulty: 1, counters: Fighting, Bug, Fairy
CP 3,151 (633-684 / Fog, Windy 791-855)
Difficulty: 1, counters: Ghost, Dark
CP 3,118 (499-543 / Partly cloudy 624-679)
Difficulty: 1, counters: Fighting, Ground, Steel, Water, Grass
CP 3,886 (668-718 / Fog, Rainy 835-898)
Difficulty: 1, counters: Grass, Electric
To join a remote raid, you need a Remote Raid pass on Pokémon Go. First stay online in Pokémon Go app, add the host as a friend if they are still not your friend and wait for the remote raid invitation from the Pokémon Go trainer who hosts the raid. Once the invitation is received you will be notified from app. Click on the invitation and then use your remote raid pass to join the raid remotely. There is no distance restriction to join a remote raid. You can join a remote raid anywhere in the world as long as you have an invitation to join.
You can always buy remote raid passes from the Shop. Also, you can get 1 free raid pass pre week from free event box at Shop. Only 3 remote raid passes can be stored in backpack.
Choose best counters, then accept the invitation and join the raid using the remote raid pass. Remote raid pass will not be consumed until you start the battle. Once the invitation is accepted you will be set to a lobby where all trainers joining the raid are available with a countdown to start the raid. If you do not have minimum battle group size required in the lobby it is recommended to leave the lobby at 10 seconds left so that your remote raid pass will not be consumed. Then the host has to invite again when more trainers are available for the raid.
Nihilego, Mega Houndoom, Druddigon, Hisuian Braviary, Tentacruel, Inkay, Drifloon, Rockruff, Frillish are currently available Raid Bosses in Pokémon Go.