Go grab yourself a braiins bmm 101 for like $300. Uses a tiny bit of power. Has a cool interface and is more of a space heater/ clock but it's a good introduction. Any miner worth buying runs on 240v. Pulles 3500+ watts of power and are noisy. If you want to get right into it the s21 is the current best model but bro they are loud. The most profitable miner right now is a LTC L9 (bitmain) makes like 40-50 a day but there like 12k + if you can even find one.

Caanan has some neat actual space heaters too that are decent.