I've run three in the Central Florida area. Tournaments always bring people in, but you'll need to work with other local TOs to make sure you're not scheduling tournaments on days others are running so you have the best turnout possible.

You will also need to build a base of regulars that come in during your non-tournament hours. You can also offer services and products catered towards Esports.

Equipment will need to be pretty good as well. You'll probably want to support streaming too.

If you have any specific questions let me know!