For me, you have to dividde the products into types.
There are the curly products that are greasy. Great for dried out hair and coils.
There are the ones that leave a cast. Like gels or boots curl creme in the pot.
Then there are the mousse type products that are weightless.
Some cross over. There is then the issue of application. How you apply to products matter.
Then theres the day 2 issue or refresh issue.
For frizz, one of the best ways to control it is not to scrunch or touch your hair. So a cast making product probably isnt what you want. But go too heavy with the greasy type products and your hair will be lank. You also want to avoid anything with alcohol in as it will dry your hair and create frizz.
In your shoes,I think I'd try some of the olive oil gel. Apply to sopping wet hair. Clip up (long thin hairdresser style clips) to get height where you want it and cover with a net while it dries. Once dry a drop of serum or oil warmed up in your hands to scrunch out. Its not as heavy on the cast as some products and it's also hydrating. And cheap!
But really, you just have to keep trying. What works for one set of curls doesnt work for others! Infuriating AND expensive!