The first step is certainly going to be determining where your hand mobility is currently at and where it is likely to be in the near future. From there it’s about choosing the easiest to manage fastening system, or perhaps even choosing to bypass that all together (and go with a camp top with built in bra).
You should look in to magnetic clasps, zips or single/large hook fixtures. These will certainly be the friendliest options.
Also ensuring that the bra isn’t too firm around your ribcage that it requires a super strength to pull the front of the bra together. For this reason you may expect the overall support to be compromised, as bras do rely on a firmness around the ribcage as the main support system.