Local business owners who are putting on fight events in their city are usually highlighting local talent on their cards. Fights who have no yet made it to the national spotlight. And those fighters have managers. Etc.
If you want to be Dana White in your local city, and then perhaps go on to work with him when a fighter graduates to the UFC...well you can do that!
In fact, the business depends on it.
That is why every year thousands of fights are put on around the country and careers are launched. Both inside the arena, and behind the scenes.