Well it depends on your skin tone, to be honest! If you're fair-medium, then a peach will work. If you're medium-dark then try an orange. L.A. Girl is a cult classic and the favourite of many- the orange works best for my medium skin, but my cousin who's a little fairer than I, loves the peach. They're cheap enough you could try both out.
Huda Beauty, NYX, and Elf also have come out with colour correctors too- I could only find NYX to link you. Theirs is a palette you can use to colour correct the whole face, and is super popular as well.
Sadly the L.A Girl colour corrector isn't on Picky either so I can't link that to you, but I've attached their concealer as the packaging is identical to their correctors.
Edit: typo