I've tried quite a few.

HG Grails deep conditioner

Karen's body beautiful deep conditioner
Koils by nature deep conditioner
Oyin handmade honey hemp
Curl junkie curl rehab
Darcy's botanical pumpkin seed conditioner
Sometimes I like to mix oils and/or honey with regular conditioner
I don't buy Bask yam nectar often, however when I use it with regular conditioner