Bare minimum makeup?

I want to use the least amount of makeup to cover my redness and minimize pores. I use a buildable concealer instead of a foundation. It’s okay. But I feel like a blurring setting powder might help. But are those powder just for when you need to blend other products (highlighter, blush, etc)? What are your experiences using a very basic makeup routine to cover redness and minimize pores? Bonus points for brands you can get at Walmart (USA).