I believe it depends on the sound that follows the の/ん, so those specific combinations might not be a thing. (I hadn’t seen them that I know of.)
The reason I haven’t started reading “orange” yet is because the cast looks so much like the cast of アオハライド, which is what this is =D
Here’s me commenting on orange in the アオハライド thread:
This is the male lead from アオハライド
He’s the one on the right. On the left is one of their teachers.