I have noticed a trend of the publication dates of hit series switching to bi-weekly or monthly schedules, or even longer in order to combat author fatigue. For example, Black Clover switching to quarterly instead of weekly; Chainsaw Man (part 2) debuting as a bi-weekly when the first part was weekly. Not to mention the increasing trend of short- to medium-length stories instead of long stories.
The era of major manga series being hundreds of chapters long may now be over! May Oda finish One Piece so I can find out what the hell the treasure is!
I don’t have a particular top ten, so I’ll just list a few series that I’ve enjoyed over the years: Detective Conan, Jujutsu Kaisen, Code Geass, Death Note and Grand Blue.