I think I want the Mimi as my first clitoral vibe. It looks like a good vibe for exploring what kind of clitoral stimulation you like (there are both large, flat surfaces and a slightly more pinpoint tip). And waterproof is always nice. And it's not as expensive as the other clitoral vibes I think I'd like to try.
I have the MiMi and I like it a lot. It has deep rumbly vibrations, but they're a little difficult to pinpoint. Nea/Lily is also a good choice. It's not waterproof, but the vibrations feel nice if you don't need super strong vibrations. I've heard great things about the Zini Seed too.