Yeah I need to work on my hip mobility too, just started doing barbell hip thrusters and one-legged inverted rows.
A bit late as my pelvis is already twisted and fixing that completely is going to take a few weeks.
I prefer cleans to snatch to be honest, today was snatch day though. Snatch dead lifts are good, my coach made me do them today, he makes me do them very slow and controlled, if he hears the bar hit the ground he makes me do them again, only went up to 60kg today, but because I was doing the reps so slowly it was hard.