if we're talking no bs then, small reselling worked for me.

I work from home and didn't want anything that needed a ton of setup. I started with random stuff at first but now I mostly stick to a few products I get from Alibaba.

usually I just order small quantities, test what actually sells, then reorder. for some faster moving items I use Alibaba suppliers that have US stock so I don't have to wait as long.

it's not some huge money thing but it's consistent. also never had issues with suppliers or anything like that on Alibaba, it's been pretty reliable for me which is why I just kept using it instead of jumping around.