Cheapest that seems capable of bytewide memory rather than only spi seems to be this g540,
https://www.amazon.ca/NKTECH-Univers.../dp/B075625DW5
The tl866 seems more popular, but approx CAD$120, I think these can read the older eproms, but may not be able to provide the higher 25v programming voltage.
Mine is gq4x4, from Canadian supplier.