In Denmark for six months. No electric bill. What miner should I buy?

I don’t have to worry about energy costs, so I want to know the best miner to get that I can use for about 6 months and then sell once I leave the country. Suggestions? Money isn’t really an object if the returns make sense.

EDIT: didn’t realize how insanely loud miners can be. Gonna have to bail on this idea I’m afraid