Help with rebels team

I use Chaze/Wiggs/Old Ben

I like having double tanks. One of the top players in my shard uses Chaze/Wiggs/Boba. When I get him higher level I'm thinking I'll swap in Ezra for old Ben

Wiggs/Chaze +1 is probably the way to go. Lando, Leia, and Ezra are solid choices. ST Han or Old Ben for double tank is also okay.

If you want a less conventional team, once you have General Kenobi, you can do some interesting things with an Ackbar hybrid team. Ackbar lead, Ezra, Leia, Thrawn, General Kenobi could be interesting and effective. The trick with Ackbar hybrid teams is to have rebel attackers who you want to call to attack, and non-rebel tanks and supports, who won't reduce the number of assists coming from your rebel attackers. Ezra and Leia can also call assists with their assist and stealth respectively. General Kenobi is a fantastic tank even out of faction. Thrawn is always great, lets you bypass tanks with fracture, and his TM swap can also call assists. It's... well, Ackbar teams are very silly.

Wedge, Biggs, Chaze, Raid Han (Make him your first zeta)