I’ve just started building my own 6502-based computer, similar to computers built by hobbyists in the 1970s.
I selected the 6502 CPU because it seems simple to understand, there is plenty of documentation, and a large community exists around it. The chip pictured is actually a 6504, which is a 6502 in a smaller package. It won’t be able to address as much memory because it lacks the pins to do so, but it will be easier to wire up.
Hopefully it will work!