This may sound weird, but I usually leave conditioner in my hair. If I don't want to leave in the conditioner I use, I make a leave in that's just watered down conditioner with vegetable glycerin for slip. I put it in a spray bottle.
I dont know if they still make this cant find on shelves anywhere but Pantene relaxed and natural wrap & set lotion is actually a leave in moisturizing spray made my hair shiny and soft it has jojoba, coconut and castor oil it does not weight your hair down
My favorite is Mielle Organics White Peony Leave In Conditioner. I also like The Mane Choice Tropical Moringa Restorative Spray and Komaza Califia Moisturizing Spray.