I have several sets of designated Resonator strings on hand as well as several sets for my Archtop Jazz Box which are special strings as well. Same with my electric.
All of my acoustics use either D’Addario EJ16 PB (12-53) or EJ24 PB True Medium (MLLLMM) Which I buy in bulk (10 or more sets) at a time.
I also keep an ample supply of D’Addario single strings on hand matching the gauges of the string sets I use.
I found the EJ24 PB at
www.juststrings.com (No plug intended) which also has for sale an abundance of single strings from all the manufacturers.
So to address the OP’s original question:
Yes! Load up on the strings you will need. Many manufacturers package their strings in sealed plastic so they stay fresh for quite awhile. I would not worry about string hoarding.
Blues.