Again, as someone who often applies liquid foundation (or tinted moisturiser) with her fingers, I didn't think it was possible that I could be swayed to change with any makeup brush. However, this Sephora Collection Pro Foundation Brush #70 ($30) has such a soft top that I can easily buff in foundation for incredibly balanced coverage, and I have to admit it makes my face makeup look better.
This brush has a thicker handle that any other makeup brush I've used, so it's easy to get a good grip while working. I've had success using it with stick foundation, CC cream, and powder foundation, too — no matter the product I've tried, the densely packed bristles evenly apply makeup and don't seem to absorb extra either.