The Dell G3223Q is an excellent option. The G3223Q is a 32-inch, 4K monitor with a maximum refresh rate of 144Hz and support for AMD FreeSync Premium Pro (Nvidia G-Sync also works, unofficially).
The monitor can also function like a smart display ... It runs a DQHD resolution and can handle an impressive 144Hz refresh rate, which is probably the most you’d get anyway if you want to ...