> Then there is bands. THey are almost identical, except a few here and there, and I can't find a concrete place to get info on Denmark bands (multiple sources have different info or lack of info).

Maybe it's part of "multiple sources have different info", but have you tried https://www.kimovil.com/en/frequency-checker/DK?

Another avenue of inquiry: Use https://www.cellmapper.net/ to see what bands users have actually recorded in the wild in Denmark near wherever you're moving to.