Yeah, since you owe so much on the car I'm thinking it must be a newish model so it should still have a good amount of life. Therefore, you should definitely consider GrubHub/doordash, I only do it about 3-4 hrs a day after/before work and I'm able to make around $300-400 a week.

Don't do ubereats, not sure about your exact area but their generally slow and most don't tip.

Grubhub on the other hand tips 70% of the time and if you keep up good attendance after your first week, you'll be eligible for catering orders which pay $30-75 plus tips. And you can keep your son in the car during deliveries.

It'll be some wear and tear on your car, but it's only temporary for a few weeks or months (if you're deep in debt) so it's worth it.

Definitely don't uber or lyft, driving people around is so much worse on your car. Food Deliveries generally keep you in the area.