I have been playing around with init 2 rebels and Leia, then all of a sudden this team was born.

BTL-A4 Y-wing - Gray Squadron Bomber - 41
Gray Squadron Bomber - (31)
Ion Cannon Turret (4)
Veteran Turret Gunner (6)

A/SF-01 B-wing - Blue Squadron Pilot - 41
Blue Squadron Pilot - (41)

BTL-S8 K-wing - Warden Squadron Pilot - 42
Warden Squadron Pilot - (37)
•Leia Organa (2)
Seismic Charges (3)

T-65 X-wing - Blue Squadron Escort - 43
Blue Squadron Escort - (41)
R4 Astromech (2)
Servomotor S-foils (Open) (0)

TIE/ln Fighter - •Captain Rex - 32
•Captain Rex - Clone Wars Veteran (32)

Total: 199/200

View in the X-Wing Squad Builder

Edit: Jk I forgot to add Leia to the U-Wing. Kinda throws everything off.

I think two of those Y-Wings are better than the Y and B. Swap out the K-Wing and X-Wing for the Two-Tubes bros to get some summery going. With what’s left, the only other thing you can squeeze in is a cheap Z-95 blocker:

Z-95-AF4 Headhunter - Tala Squadron Pilot - 25
Tala Squadron Pilot - (25)

BTL-A4 Y-wing - Gray Squadron Bomber - 41
Gray Squadron Bomber - (31)
Ion Cannon Turret (4)
Veteran Turret Gunner (6)

BTL-A4 Y-wing - Gray Squadron Bomber - 41
Gray Squadron Bomber - (31)
Ion Cannon Turret (4)
Veteran Turret Gunner (6)

UT-60D U-wing - •Benthic Two Tubes - 47
•Benthic Two Tubes - Cavern Angels Marksman (47)

T-65 X-wing - •Edrio Two Tubes - 45
•Edrio Two Tubes - Cavern Angels Veteran (45)

Total: 199/200

View in the X-Wing Squad Builder