I always recommend the focusright scarlet to people just starting out. This one has 4 mic inputs but they also have cheaper versions with less inputs. As for a mic, I would find an audio store that lets you try them out. They all sound different. More expensive doesn’t always mean better. Find something that you like. Focusrite Scarlett 18i8 (3rd Gen) USB Audio Interface with Pro Tools | First https://www.amazon.com/dp/B07QQ2YTHN/ref=cm_sw_r_cp_api_glt_fabc_SNDBWRN7JX9QFTQ5FQQ8