The title is pretty self-explanatory, I think there is one open tournament every two weeks with more than 1k usd in prizes. So, similar to the IBJJF idea (Partnership with IBJJF), but this one could be cheaper, and also attract more people that are more time at the computer per day (not sure if chess is actually a crypto-friendly audience, it probably is).
A bit online chess-related info:
https://www.fide.com/ (International Chess Federation)
https://www.chess.com/ (private)
chess24.com your playground | chess24.com (private, owned to some extent by Magnus Carlsen, current World Champion, offers lot’s of online lessons)
https://www.youtube.com/user/chess24media
https://lichess.org/(open-source, with the biggest amount of players)
https://www.youtube.com/user/AGADMATOR (famous chess youtuber)