Roblox allows players to create or join groups that highlight their own interests on the platform. The creator can change the name as well, but there's a fee involved.

Make sure to add the name carefully because you will be charged to change it later on. Once done, click on the green button that says "100 Robux," continue to make the payment, and create the group.

How Can I Change My ROBLOX Display Name? You can change your Display Name for free, once every seven days. This is how other players see you in-game and isn’t unique to one player.