How do i figure out the maker of my bike?
90% chance its a generic BSO.  If you have a distinct feature, post a photo and someone might recognise it, but...

Why do you want to bother identifying the maker?  You already have a frame that will have certain dimensions or bearing sizes.  There's little if anything to be gained from buying parts from the manufacturer.

Your best tools are likely to be a vernier caliper and a thread gauge, to find specs for parts you might need to make frame into a whole bike.