Pick up or download the curriculum guides from your local colleges, universities, and vocational schools to find out what courses of study they have, so you will have some ideas of what is out there. Then check with your local libraries on courses of study you are interested in. Don't forget online school sites. There are several free online colleges and universities. They just don't give you a degree or certificate when you complete the course. Most "for pay" colleges and universities also offer some free courses online, but again, they won't give you a degree or certificate when you finish the course. If you want the degree or certificate from any of these places, you have to pay for the courses. However, even completing the free courses is good, because you can still put it on your resume. If any potential employer asks why you didn't get the degree, just tell them you didn't have the money, and didn't want to get into a mountain of debt, but did want the courses, so you opted for the free ones.
Personally, I think taking courses, even just on your own is a great idea. Wish I had more time, so I could do it myself.
_________________
If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau