In case you want some background reading on why HBAs are recommended over port multipliers.
As for a recommendation on an HBA; I use an LSI IBM sas9211-8i
Lot more options depending on how many drives you want. If you’re looking for a reputable seller, then https://www.artofserver.com/ is generally well regarded (no affiliation or sponsorship) & can be reached out to for a recommendation.
