In most cases you can use your regular condish as a leave-in; just rinse it very lightly or reapply a small amount and use as a leave in.
There are so many products out there, it's a lot of trial and error. If your budget allows, it is fun to experiment. I wish I hadn't gone so crazy with buying things though, I feel some things I didn't really try to make work, since I had something else new to try right behind it.
2C/ Coarse/ Normal porosity/ SW Florida/ Transitioning to gray
Cleanse: CJ Daily Fix, JC Cleansing Cream, TJ Tea Tree Condish
Condish: JC Too Shea, CJ Curl Rehab (both as RO & LI)
Stylers: UFD CM, CJ PP, JC Spiralicious, Darcy's Cream Gel & Cocoa bean whip