Hello, the American Library Association has a searchable database of accredited programs here. You can limit your search to “100% online,” “Primarily online with some face-to-face courses required,” etc.. As far as volunteering goes, I believe that any way you can get a foot in, will give you an opportunity to learn about librarianship and how many different jobs there are within the field. If you feel you aren't particularly "tech savvy" taking some basic computer classes at your community college would be a great first step. Let us know if you have other questions, we have a number of Radical Referencians in California.