So far, I’ve been using Fuji Acros 100 and Ilford Delta 100 for detailed shots
What about the much cheaper Fomapan 100?
Acros and Delta are so-called flat-crystal films, meaning they use a relatively new technology that results in very fine grain, amongst other things. Fomapan uses an older technology. It is therefore more comparable to Ilford FP4+ than to Delta 100.
The flat-crystal film from Foma is the 200, which I am not familiar with, however.
Gerd