Start with DoorDash as it has basically no barrier to entry. Get on the wait lists for GrubHub and Instacart. I amnowhere near as experienced as the commenter above, but I have about 1k deliveries between these 3 apps. GrubHub is the best to work for imo, and there are reasons why the wait can be over 6 months. With GrubHub, you do not need to schedule a shift (unlike DoorDash where it is pretty much required) you can kind of turn on a meter like being a taxi and accept orders, as well as scheduling a shift where you get priority on orders. I’ve never had a car new enough to drive for Uber/PostMate so I can’t speak to that. InstaCart is OK if you just want a small amount of side money, but expect the hourly rates to be garbage, and driving out to locations where there is not a close grocery store can really suck. GrubHub is the winner in my book, simply because the whole “choose your own hours” spiel is actually relevant there. All of the others? Not so much.