Recommendation, I want a live-in to control the frizz in my hair.

You can use heated tools like a straightener or see if you can have your hair relaxed by a hairdresser😊 both are temporary solutions.

Flat iron and a comb on days when you want it straight. Don’t forget a heat protectant

I also have curly hair and I use a straightening balm combined with heat to activate it. It won't stay straight and smooth all day without both. I use it every time I wash my hair. I didn't see any straightening balms on the list of products that's why I didn't recommend one but there are plenty at the salon or beauty store. I hope this helps.