Shampoo recs for very curly dry hair

Hi friends, I’m South Indian living in the US, and I notice that my hair has been drying up with my current shampoo. I’ve switched to using only conditioner when I wash my hair (1-2 times a week) and shampoo once every 2 weeks.

But my hair is still so dry! My curls are big and beautiful but they get bushy and frizzy when my hair is dry. What shampoo/hair routine do you guys with similar hair use to keep it moisturized but not oily?