The best (and most flexible) way to get data of old floppies is https://github.com/keirf/greaseweazle which reads the data at a raw magnetic level using a standard floppy drive and a custom open source circuit board which replaces the host controller.

However, if you are specifically dealing with PC floppies, it is potentially overkill (but it might still be the easiest way to hook up a 5.25" floppy drive to a modern computer).

5.25" drives may also need a separate power supply in addition to the greaseweazle, for 3.5" drives the GW has enough power to power the drive directly though.