What I've tried and been happy with was a couple old-school tricks a friend learned from his grandfather.
Instead of rooting hormone use fresh aloe vera.
Slice a leaf open and seal the cuttings with it.
Use willow wood water.
Look for new growth, chop it up and soak a day or so before using.
According to him, both plants have such strong rooting properties they can pass some of those on to the cuttings.
Yes, bar friend, but he's worked with plants for close to 25 years, and what his grandfather advised.tacks on another 50 in my book.
Can't prove it helped but certainly did not hurt.