This may be a case of the blind leading the blind, as I wouldn't consider myself excessively skilled with makeup. Its not really possible to very significantly lighten your entire body using makeup without painting it, and with "natural" flesh tones (browns, tans, peaches and olives) this will invariably look flat and fake unless your painter has some artistic capacity to blend reds, greens, purples and blues into portions of the skin where its thinner. It will be a nasty case of uncanny valley at best, and probably streaky and disappointing at worst.
But folks have been using make-up countouring to shape their faces and bodies in cosplay and producing a very subtle lightening effect in the process. This would be done using highlights and lowlights, and there's so many guides on YouTube nowadays thanks to the Kardashians. You may be able to very slightly lighten the tone of your face using lighter foundations, but honestly I don't think this produces quality results in most cases, as it always has to give way to bare skin somewhere and without skillful blending could look cakey.
Is there a character you were hoping to cosplay using these makeup techniques?
Edit: I did a little bit of YouTube searching, and instead of just countouring tutorials you make learn some good stuff from hyperpigmentation makeup tutorials as well. Folks post their routines for coping with facial dark skin hyperpigmentation and matching their darker pigmented face to their paler neck, chest, and shoulders using makeup. These techniques produce incredibly natural results, and often the youtubers show the products they used, which is more than I can do. I recommend you take a little bit of time to watch these, and maybe click through to related tutorial videos. They'll offer good advice for colour matching and how to brighten without whitening.