Try arranging those tournaments on Chess.com! I think it is possible.
Classical tournaments
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I think it can be done with version 3. I am not sure how, but check on hosting a tournament and look at LIVE club tournaments on Chess.com.
Jan 3, 2021
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#5
If you're still interested in these longer time controls, you could check out Slow Chess League - Chess Club - Chess.com
Dear players, i am here to ask you guys if anyone of you know someone who organize that kind of tournaments, for example 60+0, 90+30, etc.
I Did play in Facebook group via another site, but the organization was terrible... if anyone knows please tell me i would love to join.
Thanks