The It Cosmetics #105 eye blending brush is awesome. I love their heart shaped foundation brush but I’m not sure it’s available right now. The Real Techniques blush brush is awesome too.
My favorite ever foundation brush is from It Cosmetics, though it's a few years old and they might not stock that exact brush at Ulta anymore. I have yet to dislike an It brush if that helps.
I have a similar routine. I use a liquid foundation brush from Cover fx. Elf stipple brush for blush Fan brush from Sephora for highlighter. The rest is Laura mercier.
I had all Mac brushes at one point but replaced them one by one. They shed worse than any other brush, especially after washing. I really like the cover fx brushes.