Primer help?

Licia 🧚🏼‍♀️

What’s the best drugstore primer for combo skin? The cheaper the better this mama’s on a budget 😂 my skin is dry right now since it’s winter & my foundation ends up looking kinda patchy/flaky? My eye shadow ends up looking the same way & I think it’s because my primer is like a year old 🙃 also, how do you pick out a foundation at Walmart/target if you can’t open them to see if they match?