What are the best products for curly hair?

I have curly hair and I don’t know what the best products out there are to use for curly hair. Everything I’ve used just weighs my hair down, is crunchy, creates build up, dries my hair out, makes my hair look frizzy and doesn’t define my curls. I’d prefer products with natural ingredients, but what’s the best shampoo, conditioner, mask, leave in products, anything? And I don’t know if this is relevant but my hair is not course, it’s pretty much medium