This list of e-sports site is not the kind what OP looking for. Neither of them accepts altcoins and just accept BTC and other online fiat methods payment. Please read carefully next time before posting a suggestion especially a link to other sites.
Only a few sports betting casino offers e-sports betting and until now, I never see a casino that accepts altcoins in betting on e-sports game. Only nitrogensports casino is I know that caters this kind of game which is currently only accepting bitcoin. Let's for other ICO casino project, I'm sure that they will offer esports betting too.