You can view a selection of guilds or clans and their sites here at Clanplanet. Some are already visible on the home page (blue link). The selection here is even more extensive and you can view more sites.
Dinotopia Guild with 5 Members League of Legends Landwirtschafts-Simulator 22 theHunter: Call of the Wild Playerunknown's Battlegrounds Rocket League Sea of Thieves Minecraft
Eternal Gaming Clan with 3 Members CoD: Modern Warfare 2 (Hardcore)
Keks Clan Clan with 5 Members Battlefield 2042 CoD: Modern Warfare 2 (Hardcore) Forza Motorsport Age of Empires II: HD Edition GTA V Tom Clancy's The Division 2 FIFA Serie
Black Goats Empire Clan with 3 Members Turok 2: Seeds of Evil GTA V Unreal Tournament Half Life 2 Counter Strike HALO 4 CoD: CoD 4 - Modern Warfare Battlefield 2042 F.E.A.R. S.T.A.L.K.E.R.
DieGang Clan with 6 Members CoD: Modern Warfare 2 Rocket League
German Guardians Fighters Clan with 3 Members CoD: Modern Warfare 2 CoD: Modern Warfare 2 CoD: Modern Warfare 2 (Hardcore) CoD: Modern Warfare 2 (Hardcore)