what hardware should i get?

Guys i'm not really updated on this but I heard that asics card are the best things to mine bitcoins. I might be wrong

I would like to know this as well i am trying to mine

asic systemminers for $3000. dont bother mining if you cant research yourself

depends on the crypto, you can use regular gpu cards to mine and sell that crypto for BTC

If you're using it for Bitcoin, don't even try. The electricity bill is higher than your GPU. Monthly.