Welcome to GPU mining!
The most easy software is Nicehash, you can download, put yout BTC adress and the software will test a lot of algos, and will mine the most profitable, paying you in BTC.
(I don't use Nicehash anymore, they are having a bad behavior lately with Phoenix miner devs)
But if you want something more profitable, it's not hard, you can download Phoenix Miner here:
https://bitcointalk.org/index.php?topic=2647654.0And mine in a pool like Ethermine, Flexpool, Miningpoolhub etc
I tested all above and ethermine is the best for me, you'll receive ETH directly in your wallet, or could be an exchange wallet, no problem
Here is a list of pools you can use to mine ETH:
https://miningpoolstats.stream/ethereumHere is a tool to estimate your profits:
https://whattomine.com/coins