Charm is a supposedly turnkey web-based operation that I've not used personally, but a former SP uses for a side gig doing a few patients a week and it's VERY reasonably priced, per her.
Jane is a Canadian product whose primary users seem to be small, independent practices like chiropractors, massage therapists, and mental health therapists. It's web-based, handles insurance billing reasonably well with clearinghouse ($100 extra per month, worth it), and it will automatically assess your license needs and bill you accordingly for part- or full-time licenses. I'm paying $135/month for the insurance plan with 1.5 clinician licenses. The only thing I really don't like about it is it sucks and handling external documents: You can upload them, but not manipulate them, rename/reorder them, or even sort them. As such, I keep a Dropbox account for managing documents. Oh, e-Rx is not included in Jane, but apparently Charm has it. I'm using MDToolbox, which does have a way to export/import patient lists, but it doesn't let me e.g., re-export a med list from MDToolbox back to Jane.
Jane doesn't try to be medicare-compliant, and so has zero alerts and dialog boxes... unless YOU tell it to stop you if you haven't completed a field, is highly customizable, has its own built-in telemedicine platform (I dropped from the professional tier of Doxy.me after most of my patients got used to it). The billing/coding part of it is simple enough if you're used to doing your own coding, although there is always a learning curve.