Question about Intel Core i7-10700K

Should actually be enough in my experience.

Yes should do.

Enough in any case, I cool mine with a H100i Pro RGB Platinum and have also overclocked it, it's quite enough.

As far as I know, the Corsair H100i does not fit the new LGA1200 socket:
https://www.corsair.com/de...üssigkühler/Doppel-Flüssigkühler/Hydro-Series™-H100i-high-performance-processor-cooler-with-coolant/p/CW-9060009-WW