The clouds of Venus are the only place where life is possible.
There could be life in the clouds of Venus, on Mars now or in former epics, and life could be even possible on Jupiter’s moon Europa or Titan, under the ice the moving waters and ocean vents are quite nice, but without sunlight.
You obviously know more already than me or the average reader on Fluther. I think there is probably a 50/50 chance that life will be found eventually somewhere else in our solar system but it will be extremely basic and primitive and not very interesting. Nothing as advanced as Jellies and more like slime or very primitive single-cell organisms.
Science Fiction can be plausible, however—and maybe more satisfying. Venus, Mars, and Phaeton (Murdok or various other names for the Marslike planet that is now the Asteroid Belt) could have had life, even fairly advanced, before conditions radically changed for whatever reason. It can be made plausible for fiction. But real life in our solar system beyond Earth I’d doubt anything more than very basic and simple organisms.