One thing you might do is have corporate esports teams play each other for real money.
Google vs Facebook in Fortnite Team Rumble, streamed live on Twitch!
Each company puts up $20k and fields a team. Winner claims purse, gives to charity.
Chapo vs Neoliberal
BTC vs BCH
Tech vs Journos
Carnivores vs Vegans
Twitter is already an async fighting game. Fortnite Team Rumble just makes it synchronous.
The platform organizes the players and ensures the money goes to charity (or perhaps to the players themselves)
Platform also organizes pre-game, in-game, and after game social media clips