Are there that many self sealing tubes to make "best" a real issue? Slime, Bell, Schwinn. Who else is there? All inexpensive so not so big a deal if you get a flat in-spite of them. I'd be hesitant for tubeless tire sealants unless they state that they are also for use in tubes.

Your question really goes against what most of us want-- less rolling resistance and lightweight with good ride quality, that's probably why so much push back. As well no one committing to a recommendation from experience with them.

A self sealing tube just seems to be more weight. Also, like sealant in a tubeless tire, might not like sitting for long periods of time. And might need to be changed entirely on a regular basis.