Do you use a physical SIM? I'm fairly sure any carrier-unlocked phone will also work with your Tracfone service if you move the SIM over. You'll need to find a way unlock the bootloader before rooting, uninstalling system apps, or installing any custom ROM. That will be difficult with retail Tracfone phones since they are decently locked down.

If you're on a budget too small for a Google Pixel, I'd suggest looking at the LineageOS compatibility list and finding a carrier-unlocked unit you like. If for some reason you must use a phone you can buy from Walmart, take a look at Universal Android Debloater to disable some of the pre-installed bloat and the Rethink DNS firewall to block internet traffic to the stuff you can't remove.