With the exception of Rondo and to a lesser extent Aldridge, none of the players mentioned in the list (plus Gortat) are any competition for Toronto and Gay. If Gay was added to the list, I see him being second after Rondo as far as DEMAND is concerned.
As for the rest of the players including Derozan and Lowry, it depends more on the size of their contracts and positions than talent. I can see a team being more interested in Granger(despite injuries) than Derozan since his is an expiring contract.
Lowry should be a very easy player to trade for a good return.