Nekopara Volume 0 and Making Lovers both have tickling scenes in them, as does Fureraba even though it's short.
The GochiUsa VN also had a pretty cute one in it
I'm aware of the Nekopara and GochiUsa scenes, but I certainly wasn't aware of the ones in Making Lovers and Fureraba.
Any context as to when those scenes occur? I.e. Which character route and how early or late into that route?