my favorite deep conditioner is the ors replenishing conditioner <3 <3 <3 it's been my staple for years
this is my review of the product overall:
Importance of deep conditioning... ORS Replenishing Conditioner - YouTube

for my leave in i do the kimmaytube recipe but i use
rose water
sheamoisture conditioner
aloe vera gel
and any oil of my choice usually either...
coconut or castor oil

the sheamoisuture line is usually a hit of miss these are the few leave in and conditioners i have tried :
Introduction to YouTube!!!.. SheaMoisture Review - YouTube

hope this helps happy hair journey!!!