I have been messing about with a list that uses both Hera and Sabine as slippery mid aces, it did okay as this

(100)

Sabine Wren (29) - Attack Shuttle

Push The Limit (3), Autoblaster Turret (2), Kanan Jarrus (3)

Hera Syndulla (27) - Attack Shuttle

Stay On Target (2), Autoblaster Turret (2), Nien Nunb (1)

Miranda Doni (44) - K-Wing

Twin Laser Turret (6), Extra Munitions (2), Homing Missiles (5), Seismic Charges (2)

But Miranda did not do as much as I would have liked,

Changing out Miranda I would have 44 points to spend, I have thought about 2 other lists with them

(98)

Sabine Wren (32) - Attack Shuttle

Push The Limit (3), Autoblaster Turret (2), Kanan Jarrus (3), Stealth Device (3)

Hera Syndulla (30) - Attack Shuttle

Stay On Target (2), Autoblaster Turret (2), Nien Nunb (1), Hull Upgrade (3)

Nera Dantels (36) - B-Wing

Deadeye (1), Advanced Sensors (3), Proton Torpedoes (4), Extra Munitions (2), Guidance Chips (0)

Or

(100)

Sabine Wren (32) - Attack Shuttle

Push The Limit (3), Autoblaster Turret (2), Kanan Jarrus (3), Stealth Device (3)

Hera Syndulla (30) - Attack Shuttle

Stay On Target (2), Autoblaster Turret (2), Nien Nunb (1), Hull Upgrade (3)

Jan Ors (38) - HWK-290

Adaptability (0), Twin Laser Turret (6), Intelligence Agent (1), Moldy Crow (3), Stealth Device (3)

Nera gives good punch to the list with her 360 torpedo turret and will take some heat off Sabine and Hera, whilst Jan gives either of them a bit more punch and intelligence agent to allow them to better combat higher ps aces

I gave Sabine stealth and Hera I'll upgrades as Sabine is likely to have token stacks to make the stealth worth it and Hera weds the hull more

Any other thoughts/ pilots I could try, I thought about Biggs but I don't think he has the maneuverability to keep within range one of the attack shuttles.

Ezra Bridger (34) - Attack Shuttle

Elusiveness (2), Twin Laser Turret (6), C-3PO (3), Stealth Device (3)

This guy is a tank, and he frees up some points to put into the other shuttles. You can change Hera's hull upgrade to a shield upgrade, for instance. I sort of doubt you have three shuttles though, so you'd need to borrow from a friend.

Or you could go for a R5-P9 Poe, I think that clocks in at 38 points.

Edit: as an aside, I ran your Sabine, my Ezra, and two X-Wings in a list that was super fun. I called it Double, Double, S-Foil, and Shuttle.