i recently noticed my rotors are very warped especially during hard braking. i plan on doing the brake pads and rotors, but how to do it?

i was thinking of slotted rotors and oem pads. or should i just resurface my rotors, and get oem pads, or get better pads like axxis or greenstuff. do u think brembo quality are good enough to withstand warping better than oem.

also whats the average price of a shop to do the labor if i have the slotted rotors and pads on hand? either that or ill do it myself but which is best, shop or me and friends