Not really a recommendation, just a data point:
At Intel stock "extreme" settings, my Freezer II 280 keeps my 14900K at 85-90c (depending on what the ambient is at the time) when maxed out at 253W. I have a pretty crappy chip, so stock volts are relatively high and I have way too little spare time to sit an optimize voltage curves nowdays. I am on the latest microcode and I get ~37k R23 at those temps which seems to be more or less in line with what people are getting out of these things (at baseline settings and with low-ish end cooling). I run the two stock fans the cooler comes with. I have zero case fans. The only fans in here are the GPU (which sorta works like an intake), the AIO which exhausts and the PSU which effectively has its own air channel so it doesn't really affect other air movement.
What is your workload? If you plan to run this at 253W 24/7 then then the above likely won't make your system happy, but if you're not running it at full tilt extensively, this is just fine.
At the default power plan a good 280/360 should have no issues keeping the chip from throttling. A 420 would allow for quieter fans to be used, which if you have room and budget for is probably better for noise levels.