this should get the jerb done: https://www.allen-heath.com/ahproducts/xone3d/

lol in all seriousness you cant just use a mixer, what amp will you be using?

https://www.amazon.com/Behringer-802-Premium-8-Input-Preamps/dp/B000J5XS3C/ref=sr_1_2?keywords=Behringer+802&qid=1661391163&sr=8-2I see a lot of people rocking models similar to this.