I have been using these.. The 3 pack is approximately $20, so very affordable. I haven’t had any problems with them, although I don’t generally record at 96K, all my projects are 48K.
SanDisk 32GB 3-Pack Ultra SDHC UHS-I Memory Card (3x32GB) – SDSDUN4-032G-GN6IM
I don’t think it would be a problem to go bigger, but I get more recording time on one than any show I’ve done and can easily swap them out so I can take them to my DAW computer while using another one in the CQ.