Unfortunately, there are zillions, all out-of-date.

My current method for finding things that are good is…

after searching for such an app with FLOSS, then with FOSS as keywords,

then I go to github, & search

awesome document scanner

or

awesome OCR

e.g. to find what there might be in the domain…

It became normal, a few years ago, for people to temporarily curate Awesome…

lists for each programming-language, to help new-programmers bypass the crud,

& … thankfully … some people are doing that for apps, now, too…

hth, eh?

_ /\ _