Welcome! Is that a wash, no manipulation and drip dry photo? You look to be a 3a, great definition starting.
There are plenty of drugstore/ budget products in regular use, which you choose depends on your hair properties and dew points/ humidity. See the stickies and the Live Curly Live Free website for an explanation of this. There is also a frizz forecast app on the main site.
Live Curly Live Free - Curly Hair Basics
What do you mean by moisturising, that means different things to different people? Do you want rich or heavy, more shine, definition, clumping, softness, slip or detangling? Oftentimes dry or porous hair qactually needs mess water (=moisture) not more, it actually needs more elasticity, reduced porosity, not to
absorb water on a humid day and go frizzy.
Stickiness of commercial gels is largely what they do, they are less sticky if you apply less or to much wetter hair. Some of the humectant rich gels are more slippy but they are totally unsuitable for certain hair properties or in certain dews.
An alternative is to use a film forming jelly like flaxseed or okra which you can easily DIY to save money. Adding oil to a regular gel OR applying over far more of a rich leave in conditioner than you think you need can alter the drying time, holding properties and stickiness. That may be what you experienced with the silicone rich gel, since silicone is an artificial oil. Again which option is advisable depends on your hair properties and dew points.
DIY for Curly Girls - YouTube