Such pretty hair! My properties and products are in my signature.

Coconut oil is king for absorbing and reducing porosity, you can use it within a conditioner or as a pre-wash on dry hair or you can add oil and/ or aloe vera to your regular gel (DIY Ecostyler custard)
Mineral Oil Versus Coconut Oil: Which is better?
Eco Styler Olive Oil Custard - YouTube
The other issue is to use enough leave in conditioner, try using more than you think your hair can handle.

Products at a pH that respects the hair can help reduce frizz by encouraging the cuticle to lay flat, two lines that consider this are As I Am and Komaza Care, nice ingredients too.
The Scoop on Vinegar
As I Am Naturally
Komaza Care - The Complete Hair Solution
2a-2c, medium texture, porous/ colour treated. Three years CG. Past bra strap length heading for waist.

CO-wash: Inecto coconut/ Elvive Volume Collagen
Treatments: Komaza Care Matani, coconut/ sweet almond/ fractionated coconut oils, Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss Ultimate Volume, various Elvive
Styler: Umberto Giannini jelly, Au Naturale styling gelee
Flour sack towel, pixie diffuse or air dry.
Experimenting with: benign neglect