"I cannot smoke. Have used PAX ERA and vape pens, they just don’t feel benign. Are there cannabis inhalers yet?"
Yes, there are cannabis inhalers which might be a good option for you. Rather than heating the cannabis, with the inhaler, a propellant carrying cannabinoids is sprayed out into your lungs. You might also try sublinguals. These are tinctures, sprays or dissolvable strips that you hold under your tongue and allow to dissolve. They take effect much more quickly than edibles and don’t last as long so they are easier for dosing.