You could easily get a make up brush set from one of your favorite brands. They probably sell those. Or you may get a set from a popular make up brush brand. For your foundation, you may get a flat kabuki brush or you may skip the make up brush for your foundation and simply get a sponge instead. When you use a brush to put on your foundation, it gets really thick, rather than the more natural look that you could get from a sponge. Next is a concealer brush. Then you should get a brow brush. This comes in handy if you use brow powder or pomade. If you don’t, you may skip this one as well as spoolies usually come with brow pencils anyway. Then get an eyeshadow brush set. Make sure that you have blending brushes, crease brushes, shaders, and smudgers so that you have everything you need for your eye looks. For your highlighter, you may get rounded highlighter brushes for a more intense glow or a fan brush. Then get an angled contour brush and a really soft powder brush.
These are just some of the make up brushes that exist but they are definitely the ones you need!