I do think Markkanen is available for the right price. But Ivey/Holland/Picks isn't getting it done. Markkanen/Duren also forms one of the worst defensive 4/5 combos in the league.
I would give serious consideration to Zion if the price is right. Harris/Sasser/Jones this year's 1st round pick. Nothing more.
I would throw a big offer at New Orleans for Trey Murphy. Harris/Ivey/Holland and 3 1st round picks for Murphy and Herb Jones.
Reports are everyone on the Kings is available. So you could get Lavine. I wouldn't but they could.
I see fans mention Siakam. I would be interested but I don't see Indiana trading him.
I would kick the tires on Julius Randle. Fantastic on offense, bad on defense, so pairing him with Duren might not work.
Miles Bridges is probably available. Another guy who is decent on offense, bad on defense.
People bring up Michael Porter Jr a lot from Brooklyn. He's a bucket and can shoot the three. His defense would have to improve quite a bit to be considered bad. Seriously, one of the worst defenders in the entire league.
A lot of pretty flawed players on that list, which is why most of them are available, probably. The only one I listed that really interests me is the Murphy/Jones trade. There has been no indication Murphy is available. But my offer is a big enough overpay they would have to at least consider it.