Ooh changes all the time but I'd say my can't live withouts are
Black tourmaline... excellent for when things are a bit much, really lightens the load! Also black obsidian for simular reasons
Mangano calcite, blue aragonite and scolecite. All so soothing and calming
Pink Petalite wonderful happy stone, makes my heart sing
Moldavite for how it settles me.
I couldn't be without any of those, but I'll go through stages of not using them and using others. Moldavite is my only daily constant.