Looking for up and coming useful and useless tech skill

[DinkDank49]

Hey, as a technical based player coming to Ultimate from melee I am obsessed with tech skill. I am looking for any kind of tech skill that applies to all or some characters that can be used to improve my game or just style on the opponent. I have only found roll cancel grabbing, attack canceling, and pivot canceling. I am looking for any tech skill whether it be as useful as melee wavedashing or as useless as moonwalking.

 

[DDRC]

A bit late to this but, using z with normal wavedash gives iceclimbers semi viable meleeish wavedash, simon and richter can cancel all landing lag on platforms with a double jump exploit, wavelanding is a thing and cloud has this weird useless instant walljump thing