The tuck planche is the preferred starting point. Been there, done that. Working on some alternatives. Finding out some interesting things. One of the best in the world says that the key to planche is getting as far forward as possible. And I'm not even working on planche, it's just a side maintenance project for now....and STILL making gains.
Here I'm trying to keep a flat body (here I'm erring on the hip forward) while moving as far forward as my wrists will allow, while alternating the legs. Much harder than it looks. If you find it easy then your hands are likely way too close to your head.