I think actual life drawing from the human figure may be your best bet. You may be able to find some open drawing classes at your local community college or a local art studio.
I took a course at a local college. I was taught all the bones in the body in about a day. Not every single detail, just the basics. Like the fact you have 24 ribs, 12 on each side. 14 true ribs, 6 false ribs, and 4 floating ribs...the three sections of the sternum, etc. I've seen so many skeleton or zombie models where…