SAN Infusion is my favorite.
VPX Zero Impact MRP is very low carb too, with lots of fiber and no cheap proteins.
There are protein blends with some extra fat and not much carbs that may qualify for what you looking: Nutrabolics Isobolic and CNP ProPeptide first come to mind.
Wow the VPX brand look Great!!!
THE POWER OF ZERO CARB® PROTEIN POWDER:
100% Whey Protein Isolate
Microfraction Selection Technology
Great Tasting Flavor
Zero Carbohydrates
Zero Sugar
Zero Fat
Zero Aspartame or Acesulfame K
Zero Corn Syrup Solids or Hydrogenated Oils
Zero Fat-Promoting High Glycemic Index Maltodextrins
Zero Caseinate, Ion Exchange or Other Old-School Proteins
Zero Estrogen Promoting Inferior Soy Proteins
Zero Lactose - Generally Safe for Most People with Milk Allergies