A good romcom doesn't require 100-200 chapters, I pray that 30 doesn't mean it got axed....
There are various pretty good Romcoms that are around that or even less
A Galaxy Next Door 30 chapters, Sesame Salt and Pudding 19, Hadi girl 30,Do Chokkyuu Kareshi x Kanojo 39,Seishun Forget! 20,Jimi Joshi x Osekkai Danshi 19,Hajimete Datteba! 20, Senaka Gurashi 21.