There are a few companies who make PXI breadboards.
I have seen some good success with PXIT boards
Just a general reminder, interfacing to most PXI breadboard kits is not always a straitforward process. Usually it is done by a write function like PXIWrite(Address#,port,Data) or a read with similar structure. Most devices can't be tested in MAX, you need to write your own test panels, or hope for some supplied from the maker.