I was very pleased to see that Freestyle has started making 2 1/4 x 3 1/4 sheet film available again in 100-speed and 400-speed. I recently bought a roll-film back for my Miniature Speed Graphic, but I also like the option to use sheet film. One of the things I like about digital over film is that you can take a picture and have it IMMEDIATELY rather than waiting to "finish the roll." Sheet film is the closest thing to having that ability with film, just like those old-time press photographers.

Here are the films at Amazon, which for some reason is cheaper than Freestyle:

https://www.amazon.com/dp/B0152OQZMA/ref=nav_timeline_asin?_encoding=UTF8&psc=1

https://www.amazon.com/Arista-Ultra-Black-White-Sheets/dp/B0152OQQZ6/ref=pd_lpo_sbs_421_t_1?_encoding=UTF8&psc=1&refRID=ZT3XCTP1E5K90TEK30VY

https://www.bhphotovideo.com/c/search?ci=335&fct=fct_size_3122%7c2.25x3.25in&N=4093113314

Each spring Ilford takes orders for special cut sizes and some stores allow you to order thru them.