Besides the Clippers getting Leonard, the most legit team I think could be the Jazz. They just made a trade for Conley. Favor's contract isn't guaranteed so letting him go should open enough space to sign Al.
The lineup would be conley, mitchell, ingles, horford, and gobert. That is a stacked team that I think fits well together.
Favors and Gobert couldn't stretch. Ingles is a great passer and shooter. Al can shoot and pass. Conley and Mitchell can score. Al and Gobert hold down the paint. I think this team becomes a legit contender if he goes there.