The Rockets have Senguin, Capela and Adams. Denver has Jokic and JV. OKC has Chet, Hartenstein and Williams. Wolves have Gobert and Reid. Dallas has Gafford, AD and Lively. Knicks have no money to offer. Cavs have no money to offer. Hawks have Okongwu and KP.
Horford's options if he wants to be on a goof team are basically the Warriors or the Lakers. So either he's back with the Celtics or this is going to suck.