Okongwu is pretty much universally considered a top 10 pick, I don't really think I've seen many mocks or predictions go against that for a while, and most have him top 5. Which is good, because he's one of the very best prospects in this class. His Lonzo connection means nothing to me though: you don't make picks based on what would please last year's worst starter.
I think the prospect that most people in Pels world and draft world think that we should aim for is Killian Hayes, and I agree with that. He's a little more questionable: ESPN's last mock had him going 12th to the Kings, and Sports Illustrated's last mock had him 7th to the Pistons. We have enough trade material to get up to #6 if we wanted, but the question is just whether or not the price would be worth it.