Based on this:
https://computernetworktopology.com/types-of-ethernet-cables/Since you are going to be near a lot of noise sources, just make sure what is installed is shielded, and that you have the appropriate switch for it. I believe, but am not sure if shielded Ethernet requires fancy switches with grounded plugs. I say this based on my experience in a trade show in a NYC hotel room. Man, you pick up everything.
Seems 6a is the highest performance cable right now, but it’s going to be a very very long time before you need 6a/10 GBps, unless you run a server farm.
Based on cost performance, it seems Cat 6 (shielded) is a very good choice, but ask your installer about cost differences.