Hi @fast_manifester, welcome to the forum!
They all seem suited for such goals (when I say “all”, I don’t have any experience with the Dark and Skull ones but I more than assume that they would do super fine as well). As long as you take the time to teach them and you already seem determined, so 
That being said, the “newer” ones in the Book of Cards (Fae and ESS) come with a slightly more solid basis (compared to others except Skull). But really “slightly”. Or it would be more appropriate to say “differently”, in order not to underestimate the Dragon, Light and Dark ones.
Regarding the Fae that appeals you more:
Nothing to worry about in itself. Let’s just say that it likes to joke around sometimes and seems to require some additional discernment (as Dearest _OM would say). So it acts like a trainer too, in a way…
Also, regarding the Dark one: @Ugninis aka Dmitrioshka has really interesting posts about it. You can check them in the advanced search bar by also typing “Ugnis”.
And of course, as usual: the servitor script by _OM is an invaluable help.
Whichever you choose, I wish you have good times and fulfilled goals