If you are new here, and don't know anything about mining, I suggest you to start with Nicehash:
https://www.nicehash.com/download-centerDownload the miner, put your BTC adress and start, simple like that and you'll be mining in a few minutes
After that you can research more and learn how to tweak your cards to have the maximum hashrate at lowest power consumption, you can choose a coin to mine directly if this is what you want, you can choose the best pool etc
Here are some great resources to learn more about:
https://1stminingrig.com/https://www.youtube.com/channel/UCVVWXoQfMfQVuzxcLylq9aAhttps://www.youtube.com/channel/UCAGsnTCpw7pvhR4RAlEQGzghttps://www.youtube.com/channel/UCT44w6854K62cSiwA1aiXfw