Reputable amazon store management companies

Does anybody have recs or know of companies that manage amazon catalogs?

We are looking for someone that can manage our listings, and basically just deal with seller central. We are currently using a company with a big youtube presence that I won’t name and have not been impressed with their attention to detail and ability to actually get stuff done. We are a brand that manufactures our own products and need to free up resources to focus on biz dev and other sales channels.

We are not interested in anything targeted at drop shippers or companies based outside of the US.

Thanks in advance