Glad I could help!
The tsuke is a great component of fuukiran.
I personnaly love the mountain tsuke ! It is found mostly on bean leaves (Sengaku, Hougyoku, Seikai)
The wave is also very nice (typical is Oonami Seikai like on the picture I posted).
Depending on websites you look at, there are other tsuke beeing referenced, like Shallow Moon, Bow, Low hill (this one is often considered a Mountain tsuke and looks like a straight line with a tiny bump in the middle, like on
Daruma), and there are some varieties that seem to not have any tsuke like Ushiwakamaru