I've said this before but the answer to tanking is to reverse the lottery order... not the draft order just the lotto. So the team with the best record who doesn't make the playoffs has the best chance at the first pick and being in the top 4, the team with the second best record out of the playoffs has the second best chances and so forth. I don't know if you cut that off at the top three or the top four but after the top 3 or 4 you the order is the same, whoever didn't get into the top 3 or 4 via lotto drafts worst to best picks 4 or 5 through 30.
No more tanking, definitely a reason for all of the teams to fight for wins that would equal better odds at the top four picks.