This community is about the fediverse and this post isn’t. Locked for being off topic.

I would assume that people opposed to google apps and surveillance would also be unlikely to have business with door dash and co.

What a weird question. If you wanna do gigs from those slaver apps, it might be worth keeping a separate cell phone just for that.

Other than that, see what kind of work is available around your place.

I have an onlynofansatall account and I busk in the shower

All of those apps will require playstore and no FOSS-only alternative will be popular enough to make you any money. You'll either need to use a dedicated phone for those apps or you'll want to start a lawn/snow shoveling service.

Do these sites not have regular web based interfaces that work for the gig worker? I know as a customer for many of these, I use the web on my desktop rather than my phone. It’s easier to read and navigate.