I use Mullvad as my everyday/everything browser, Librewolf for a select number of websites I'd rather stay logged in. Sometimes Tor as well, mostly out of curiosity because my threat model does not actually require Tor.
If you don't want/need to deal with the drawbacks involved with browsing on Tor, I'd say Mullvad is the best choice to resist fingerprinting, given how it essentially reuses Tor's method to blend users in a crowd, which is the only really effective way to fight against fingerprinting.
If you really need to keep some cookies/session tokens, I'd recommend Librewolf. The only thing to keep in mind is that it does not support auto-updates, so you do need to take extra steps to make sure you have the latest version. There's an extension that can make the process smoother.