I do daily rinse-out conditioning with a light protein conditioner (e.g., Mill Creek Biotin or Organix Biotin & Collagen) and 'seal' with flaxseed gel.
I'm not using a leave-in/moisturizer. Experience tells me that it's too much for my hair in this weather. If I use one, it would need to have protein high in the list and zero humectants (the panthenol in the MillCreek has started giving me problems).
OP, if you're looking for suggestions, Oyin Hair Dew, DB's Pumpkin Seed and Camille Rose Moisture Milk are good choices. They are way too moisturizing for my hair; I tolerated each for about a week (or less, in Oyin's case) before my hair revolted. But I still think they're excellent moisturizers for thirsty hair.