Are you wanting official Bosses are you including de facto Bosses?

Vincent Basciano was the Acting Boss and off the street already when it was revealed Joe Massino became a cooperator. The Family never confirmed a new Boss and Vincent Basciano was never officially recognized as Boss. He quickly lost his power to Michael Mancuso who was the Acting Underboss at the time and they didn't get around to confirming a new Boss until 2010/2011 when Michael Mancuso got the spot. Michael Mancuso was the de facto Boss during this period just as Vincent Basciano was briefly before his conviction.

Andrew Russo was the official recognized Boss although Teddy Persico had some type of de facto role as he was slated to take over after his supervised release was over.

The Colombo Family voted Joe Magliocco in but the Commission didn't confirm it so he wasn't official.