Looking at the urls they use they have guids, A title guid has to have some connection to the chapter guids.
Tbh even removing the language filter would be fine. I think just being able to tell if some manga has more than 3 chapters or something fast will save me time in reading the title and...
The quickest most raw form of this feature is just the count of what is displayed on the manga page. However many links exist is the count. This feature is desperately needed. Use an agile approach get a simple feature in and iterate. No need to do it all at once. Just this would filter soooo...