Looking for a solid street racing car around $30k

Alright, so I’ve got about thirty grand to play with and I’m trying to figure out what the best platform would be for some street racing. I’m not looking for something that’s perfect right out of the gate I’m totally fine with putting in some work for mods and tuning down the line. I’ve been eyeing a few options like a used Mustang GT or maybe even a Subaru WRX STI, but I’m curious what you all have had success with. What’s been reliable for you while still having that potential to really open up with some upgrades? Any hidden gems I might be overlooking in that price range?