Dwight Howard is considering signing with the Golden State Warriors as well as the previously reported Los Angeles Lakers, Houston Rockets, Dallas Mavericks and Atlanta Hawks, a source close to the player said Thursday.

According to the source, Howard's main concern involves "what team he feels has the best chance to win championships, has the best team and system around him."

Howard can't officially sign with a team until July 10, when a moratorium on NBA business is lifted.