One caveat I want to mention right off the bat. This manga is full of moments, where you see handwritten-like japanese, for example on blackboards, signs, paper, etc. These are important to the plot, the only things that don’t have furigana, and they potentially don’t get recognized by the OCR, so need to test first.
Thankfully our dear friend @ChristopherFritz has got you covered since recently: ChristopherFritz's Study Log - #721 by ChristopherFritz
I only really do this with actual books, when the resolution is so low, that the text is blurred and/or the furigana is virtually unreadable.
Komi is actually on the pretty good end of the scale in this case.
Compare this:
To a standard panel of for example Horimiya:
(With this one I physically can’t zoom in more, that’s how big the text is)
Otherwise I just use a model from this site, specifically “MangaScaleV3”, because it handles text better than the other options in my experience, alongside Chainner which is a very intuitive image editing and upscaling workbench.