Lowest Residue Inhalation

Hi all, new here and have a question. I'm sure I'll get a ton of judgement as I have from others, but here's the quick and dirty version of my story. I'm 37, diagnosed with Crohn's, Bipolar, and rheumatoid arthritis at 20 so have been on medical marijuana for years since it was rolled out in my state. It helps immensely and i was able to get off so many other meds. I had a stroke 2 years ago because I had a massive hole in my heart which was repaired in October last year. I have always used flower or concentrates since my bowel doesn't absorb edibles well. Obviously, I shouldn't smoke after having a heart surgery (even though it was very simple, heart is fine, and there were no blockages/valve replacements,etc) but RSO and rosin gummies just aren't doing it and i was wondering if anyone had any suggestions as to what I could use as a good vaporizer. I worked in a dispo for 2 years but I don't know what the new stuff is anymore! And yes, I know smoking is not good for anyone, especially with health issues like this but I work in the medical field and am not ignorant... I just want a good quality of life