Hyatt has a partnership with SLH Hotels that lets you earn points and status at those properties (when booking paid rates through Hyatt) and redeem points at these same properties, though not all of the hotels are part of this arrangement.
Shortly before the pandemic the partnership had grown to include about half of the SLH hotels. We hadn’t seen any additions since then, which isn’t surprising since many hotels would have wanted to pause investment in integration during the pandemic.