I recommend the Miniso powder brush.

I'm not sure if Miniso is still around. When Miniso first opened, I bought some Real Techniques cheaper alternatives.

I tried it out and liked it. I bought the powder brush, and since the bristles are plump and on the shorter side, it's perfect for blush. The color payoff is really good. Baked blushes show up better than powder blushes. If you blend it in a circular motion, the color payoff is amazing. I bought it at a low price. I wonder if it's still being sold at a low price.

Try using a blush brush that is perfect for baked blush, like Cheek Pop or Benefit.