You have quite a few options. If you search the Redgate Buyer's Guide or
MENU/Software Library on the keywords EPROM and Macintosh, you'll get a list of
many software applications. Many of these programs generate object files in
Motorola S, Intel Hex, and TEK-Hex (Tektronics format) record formats, used by
a majority of PROM burners. Some programs have their own built-in
communication emulation package, while others require you to use a terminal
emulation program, such as MicroPhone or MacTerminal, to downloaded to an
emulator or EPROM programmer connected to the Macintosh modem or printer port.
We have also seen various PROM burners advertised in the Macintosh magazines.
A check of back issues should help you develop a list of names.