There are just a few basic items you need to address when changing to a different type or manufacturer of alternator;

Virtually all alternators have mounting 'ears' that are flush with the front of the alternator. This means that many brackets will fir, but you also need to measure the diameter of the alternator to make sure the bracket will adjust far enough to get a bolt through it and the bracket.

The pullies vary a lot between units, as does their vertical alignment with the fan and crank pullies.

You'll want to find a pully that uses the same V-belt that fits the grooves in your other pullies, and it must line up with them when you mount the alternator.

The post before mine lists a bracket that works with the AC Delco alternator.

As long as you're replacing it, get at least a 100-amp alternator. We are using a lot more electricity now than the original car was able to produce with its generator.

I have the Bosch alternator, but it's underpowered. My dash light glows dimly when I put on my high beams at night. If I added the power drain for my driving lights (200 watts more) and whatever it takes to operate the windshield wipers and heater blower, I can pretty much guarantee that the output from that little red light would be blinding!