Hello & welcome to Squidboards. You can find groups in the Groups section above in the top search area. Or you can visit threads for Squads/teams at Inkopolis in the Forums. Inside Inkopolis is also my Thread, Splatoon Online Squads which contains a lot and usually some of the first formed Squads. You can search in those 3 places for groups of Squids. Hope you can can find the challenges. Good luck!