Looking for some new ideas.

26m and I'm currently working at a factory on 2nd shift. I'm off on weekends so my schedule is completely open on Saturday and Sunday.

I've done Doordash, Spark and Uber. I was detailing cars on the side but I haven't had any in a long time. I occasionally help at a local shop but it's pretty slow this time of year.

I'm really trying to make an extra $300+ or so a weekend. I don't want to do a second job because I'd rather do it whenever I want to. I also have a CDL.

Any other things I could try out?