My favorites are:
• Chloris (Mandragora)
• Hippogryph
• Karkinos (Crab)
• Scolopendrid (Scorpion)
• Orobon
• Slime
• Karakul
• Hanuman (Opo-opo)
• Ruszor
I'd be extremely happy with anything from that group, and getting more than one would make my protuberance more protuberant than the aforementioned Ruszor. I'd particularly like to see things from families in which we're currently weak, such as Hippogryph for Birds or Karkinos for Aquans.
Some of the others (Chigoe, Hecteyes, Etc.) sounded interesting, but then I recalled that jug pets are generally HP-filled auto-attack machines whose best TP moves are ones which enhance or enfeeble.