This boss is easy af...
You just need 6-7 rexes with about
30-40k health and a fluffy raptor..
I used 7 rexes with 40-50k hp and 70 armor saddle, 1 yuty, 1 theri, 1 peppa pig, 1 fluffy raptor. It was my easiest alpha fight ever. Literally i cheesed this boss. Deino is just great dino for it.
I'll recommend to bring a shotgun with about 100+ bullets for the airbrone part of the fight.