Another card draw option that everyone forgets, but could maybe be viable: Alolan Sandslash. An extra card every turn is half of Zoroark's effect, without a potential two prize liability and without discard (though the discard is often a bonus, rather than a drawback, but I digress...).
Alolan Sandslash doesn't bring the same utility to the deck as Zoroark, however. Drawing one extra card isn't as powerful as drawing two, (obviously), and it can't take a hit. Zoroark is not only draw support, but it's a 210-HP wall
and it's an attacker. For a DCE, Zoroark is far more splashable than Sandslash. And is just...better. Yeah, you forfeit an extra Prize. But the benefits weigh far more than the consequences.
Oranguru will continue to be good and might go up in price. I can't see your point in calling this card "lackluster". You mentioned instances in which Oranguru is a good card, and I'd agree there, but how it's "lackluster" baffles me.
Zoroark-GX will go up in price. I'm expecting to see it trickle up to at least $15 apiece.