You should look into Butane extraction. Thats probably the cleanest easiest way and it yields the most potent ear wax. You have to build this tube contraption but its really worth it.
ISO-Propal sucks don't use it its not even worth it. If you can get your hands on some Ethanol that works really well, just don't evaporate it over a flame or in the stove or it will explode. I had that happen it really sucks.
But yeah. Best solvent is butane, next is Ethanol. Acetone and hexane are really only used if your going to do acid base purification, which is kind of hard if you dont have access to a lab.
If anyone decides to use the butane extraction method (a tube packed tight with cannabis, screens on the bottom end, with a cap that has an injection hole on top to receive the nozzle from cans of butane) DO NOT USE PVC PIPES (there are some internet plans for THC extractors made of PVC).
Butane breaks down PVC which leaches toxins/carcinogens into the hash oil (honey oil).
Not sure if hexane or the other "ane" suffixed chemicals are caustic to PVC, but butane most definitely is.
*Not saying you're going to do it this way, just a heads up to any who are currently using PVC and butane to extract THC, or those who are thinking about it.
*Use steel pipes instead!*