Ticket Selling Platform?

Not sure if this is an allowed post. I’m not trying to sell tickets on here because that encourages scammers, but does anyone know the best place to sell tickets? Like Texas has a large organized FB group where people look for/buy/sell music show tickets. Does anyone know something like that?

I can’t make it to one of the games and would prefer to sell it personally than list it through the Texans not really knowing where it’s up for sale.