@Lyric your hair is absolutely gorgeous! I hope one day my hair will be such a pretty silver
Rhassoul was my favorite clay to use on my hair, but everyone is different, so experiment away
just a small tip: wash your ears thoroughly after a clay hairmask.. I once went to work with a lump of clay stuck in the crease of my ear 
Although I really liked washing my hair with clay, it was a lot of work and I don't do it often anymore. I tried a few natural shampoos which were ok, but last summer my hair got very damaged from all the dust of the renovation and I went to a dedicated haircare shop to find something more protective and nourishing. They pointed me in the direction of a natural haircare brand that I now adore. I'm in EU, so might nog be available for most of you, but this is what I'm using:
https://www.floralehaircare.com/metamorphose-magna-macadamia-&-argan-oil-shampoo-hmemag00001https://www.floralehaircare.com/metamorphose-magna-macadamia-argan-oil-potion-11-150ml

Rhassoul was my favorite clay to use on my hair, but everyone is different, so experiment away


Although I really liked washing my hair with clay, it was a lot of work and I don't do it often anymore. I tried a few natural shampoos which were ok, but last summer my hair got very damaged from all the dust of the renovation and I went to a dedicated haircare shop to find something more protective and nourishing. They pointed me in the direction of a natural haircare brand that I now adore. I'm in EU, so might nog be available for most of you, but this is what I'm using:
https://www.floralehaircare.com/metamorphose-magna-macadamia-&-argan-oil-shampoo-hmemag00001https://www.floralehaircare.com/metamorphose-magna-macadamia-argan-oil-potion-11-150ml