How could I make a simpled borad like pynq-z2

Hello, I am a begineer of pynq,I found it is so wonderful. I want make a new board support python.Is there any suggestions? hahaha

Of course there is!
We have written something on the process on our documentation website here. Also, you can take as example the Ultra96 repo for structuring your own: GitHub - Avnet/Ultra96-PYNQ: Board files to build Ultra 96 PYNQ image

We very much encourage it. And if you are willing to make it public, please share your results with us!