Advice on LSI HBA Card

I am planning to expand my storage on my unraid server. It has 4 sata ports and already two are filled.

I am planning to get 18/20TB HDD for parity disk and add 2x 14TB HDD ,

I want to know which LSI HBA expansion card will do the job.

MY MOBO : msi b450m pro-vdh plus

I am looking at exapnding to support 4-6 HDD (future proofing)

also what else i need along with it ? Cables ? connector ?