On a whim I thought I'd check if there was an r/teaching because I need some advice

I want to become a teacher, likely elementary. I need some advice on where to start. I am 29 years old. I have a bachelors in business admin and marketing. I live in PA and its my understanding that I can substitute teach with my degree already which I plan on doing. However I would like to go back to school to aquire whatever is necessary to teach full time.

I guess my question is, where do I go from here? I do already work and I have a four year old boy. Most of my time is split between these two so I would have to look at night classes or something online where my credits would transfer.

A high school friend of mine (who I'm not in communication with anymore) is a teacher in Jersey. She said if my credits transfer there wouldn't be much schooling needed. Also the fact that I am a male, I have a lot of experience with special needs kids and I also have a music background would help a lot.

Can someone out there point me in the right direction?