Online businesses are generally inexpensive - even without tech experience. You just need some grit to learn how to build them or have a little capital to pay someone to.

If your willing to put the time in - there are tons of potential business ideas on theproblemindex.co - solving a real problem, even for a small number of people, can turn into a solid side business. It’s not easy though and you have to do your research to find a problem multiple people have to sell it.

Good starting point to find something worth pursuing at the very least.