You can make your own DT by using whatever conditioner you have around and adding whatever your hair likes--oil, aloe, honey, bananas, molasses, etc. I almost never do DTs because I just don't get around to them, but I do moisturizing/conditioning/protein as part of my regular routine so have less need for DT. I think it's better to start out simply and then add products if you need to. Something to wash with, then something to rinse out/leave in, and build from there. You don't even have to use a rinse out if you don't want to. Some people just wash and then use a leave in.
Former longhair, now CG, living in N. California where the fog meets the wind
3a/b, fine, normal porosity/elasticity, high density
Conditioner wash and style. That's it!