TLC visualizing agent for Hydrazine derivatives

I have yet to find something an iodine chamber doesn't stain. With that in mind, its totally nonselective.

I suppose some kind of solution of dinitrofluorobenzene could work. Friend of mine made dinitrophenyl hydrazine and its quite orange

Thank you all for your kind reply. I will try them

Ninhydrin is the normal go-to for amines. I also like ceric ammonium molybdate as a general purpose stain.