I live with a composting toilet in my house, family of three, and maintain a couple of others (different types) at my work.
My house has a Separet Villa unit which is good for indoors, has an electric extraction fan built in to remove smells, separate drainage for urine (in a remote location a soakaway’s fine) and empty your bucket every three days or so into a pit or midden (mine gets emptied into a worm composting tank).
If you’re thinking of an outdoor cubicle (cludgie, nettie, insert local term here) which may suit your location and possible lack of power then you may want to build your own – There’s loads of stuff on the web on perfectly good home made compost toilets if you fancy a challenge – good fun designing and building one.
I can email you a list of links to useful websites…..my email’s in profile.