My top snooty villagers, in no particular order, would have to be:
1.
Whitney: She's on my island right now, I'm really enjoying her company. She replaced my first and only other snooty in NH which was
Ankha.
Ankha was a randomly generated move-in and
Whitney I happened to come across while island hopping on my first ticket. I got pretty lucky I'd say as both are regarded as very sought-after snooty villagers. I have to admit though I wasn't a huge fan of
Ankha after meeting her. She's just alright to me. She did leave me a golden casket as a moving away present. Not sure if that reflects her thoughts about me or if she just wanted to give me 80,000 bells. So there's that.
2.
Blaire: I've never had
Blaire but I've decided that she's the next snooty villager I'd like to invite to my island if Whitney ever decides to move. Not sure what it is I like about her, but I tend to gravitate toward squirrels.
3.
Purrl: I had Purrl in NL and I was absolutely not okay the day she decided to move out. (Btw I'm so glad we force villagers to stay in this version, even if it is unethical. I just like them too much and it's my happy world so I'm glad I can choose who stays and who leaves, haha).
4.
Diana: Also had her for the first time in NL. She stayed the longest without asking to leave and I just formed a good connection with her.
It seems to me like you're trying to avoid multiples of a species. Not sure if that's what you're going for, but with this in mind, I'd recommend:
Blanche (Ostrich),
Julia (Ostrich),
Eloise (Elephant),
Opal (Elephant),
Baabara (sheep),
Yuka (Koala), or
Bree (Mouse).
Good Luck