CG for 5 years and struggling with my fine and thin hair

I have been experimenting with various CG products and styling methods for several years and can't seem to find the products that make my curls come alive. I have had a curl analysis done and I have normal-fine texture (leaning slightly more towards fine) with normal porosity and normal elasticity. I think I fall into the 2c-3a curl type. I would love to hear recommendations from similar hair types on the products and methods that help you achieve volume and well defined curls.