Im currently using a deepcool LT520 on a 14600k at 5.8ghz, peaking at 200w in cinebench and this cooler is able to keep it bellow 90C.

The only cons that i see is the fan noise at full speed 3000rpm but you can get a silent AIO like Arctic Liquid Freezer II that performs equally if not better

I recently bought an 14600k and I was surprised how easy is to cool this chip due to low consumption (30-50w) during gaming or light workloads and at idle state it stays under 10w.

If you really want to keep the CPU efficient, as a few folk already mentioned undervolt and set the short and long power limit setting under 180w is the solution.