Are you looking for a vegan protein?
Whey Protein?
Whey Blend?
Casein?
If you could be more specific I could give you some great suggestions
If cost is not an issue:
MSI Lean Whey (Lean Charms, Oatmeal Cookie etc...) -- Mostly an isolate
Ghost Whey
Beverly UMP (CNC is amazing)
Metabolic Nutrition (PB Cookie is GOAT)
A little costly but not breaking the bank:
Quest (PB, CnC) - Thick Blend
MTS (Red Velvet, PB CnC, CnC, Triple Aussie Biscuit)
Nutrabio - Muscle Matrix (Blend)
Cost-Effective:
Dymatize Whey (Choc PB, Choc Cake Batter, Snickerdoodle, Chocolate Fudge)
Cellucor (Cinn Swirl, Choc PB, Molten Chocolate)
PES (Vanilla, WCM, PB Cookie, SnickerDoodle)
Animal Whey (Banana, Red Velvet, Cookies & Cream)
Rule 1 (Banana, Fudge Brownie, Red Velvet, Pumpkin)
Isolate:
Nutrabio Isolate
Xtend Pro (Chocolate and Vanilla are my favorites)
MAN Sports Iso (All the flavors are great I have tried)
Dymatize Iso-100 (Birthday Cake, Orange Cream, PB, Choc PB)
Allmax Isoflex (Choc PB)
Rule 1 Isolate
Nutrex IsoFit
Vegan:
Ghost Vegan (Pancake batter is my favorite)
BEAM Vegan
Nutrex Vegan
PES Vegan (Choc is best)
SAN Raw Fusion
Egg:
Gaspari Proven Egg
Casein:
Dymatize Vanilla is my favorite.
Hopefully this helps.