Try Herosphere which is based on a ETH token they designed themselves.   If you are studying something properity then thats about the best example I can think of.   
  The problem I find they might have is its overally customised if anything, you must pick out indivual players to make that bet where as the majority of traffic for esports betting is people simply supporting one team over another.   Some people literally just want to bet Navi every time or Astralis I guess makes sense on their usual form for csgo.   Never a great idea to over complicate a product.