I clone two ways and both organically.. 1. Make a cheap bubbler using a tub from a dollar store and a fish tank pump from aliexpress that cost $6. Black out the bottom or buy an opaque container. Run at 15mins on 15mins off for the pump to keep temps below 23celcius.
Use distilled water and change every 3 days. Use plastic pint glasses as domes and spray inside daily to keep humidity up..I always see roots in about 2weeks.
2. I use soil & perlite. But first make willow water which naturally contain salicylic acid from the willow tree which is a rooting hormone. Anyone who knows willows know they spread very easily by self cloning.
I use the yellow tips to make the tea and take all the leaves off..cut into 1inch segments and steep in warm water for 2 hours. Drain the pieces and bottle the tea. Put the cuttings in a glass of the tea over night.
Then take honey and ground cinnamon both natural anti fungal and anti microbial, and mix them.
Take the cuttings dip them in the mixture at the cut ends and put the into the soil/perlite mix then water in with willow tea. Cover with a dome or bag and cuttings generally root in two weeks