Let's just hope that we slip to #10, as there are 10 guys right now that I think would be worth using our pick on, none of which are listed here.
#1. Try to move up for Russell (if he drops to #3/4) or Mudiay (if he drops to #5/6), without giving up Exum.
Likely not an option but worth taking a shot. Trade our pick, a future 1st, GSW 1st, OKC 1st, & Burke. This may not get it done for Russell, but if Mudiay is still there at #5/6 & the team picking at that spot doesn't need a guard, they might consider it. Both scenarios are highly unlikely, though.
#2. Try to move up for Winslow/Hezonja/Johnson around #6-8.
Winslow may go top 5. If he were there at #6, I could see us trading some combination of our pick/future 1st/OKC 1st/GSW 1st/Burke for him as he appears ready to contribute from day 1 & should be a very good 2 way player. Personally, I prefer Hezonja (for our team), especially because he is the more likely of the 2 to fall (meaning he will cost less to move up for) &, imo, has more offensive potential. If we end up at #10, moving up 2 or 3 spots should only cost us an asset or 2, which I think would be more than worth it to acquire him. If Johnson is there at #8/9, I'd give up an asset or 2 for him as well (although not as much as I'd be willing to give up for Winslow/Hezonja).
#3. Stay at #10 & draft whoever is left out of Kaminsky/Porzingis
Either would fit well as our backup stretch big that we currently lack, if we are unable to move up for one of the 3 wings. Kaminsky looks ready to contribute now while Porzingis would be more of a risk/long-term project, though he likely has the higher upside of the 2. I wouldn't give up any additional assets to acquire either one, but would be fine with using our pick on whichever remains between the 2.
#4. Trade down/out of the draft.
There are some interesting prospects after those top 10, but none that I would use our pick on if we did happen to end up at #11 & all of the top 10 guys are off the board. If this were the case, I'd attempt to either trade down to acquire another future 1st & draft bpa (this draft is deep enough that we could still get a solid prospect, along with the additional asset, in the late teens/early-mid 20's), or trade out entirely either for a starting caliber player (even if it meant adding an additional asset or 2) or a future 1st with the potential to be a top 10 pick (although the pick would have to be a near lock to become a high draft pick).
You wouldn't think that 1 spot would make that big of a difference, but I really think it does in this draft (at least for us, when you take our current roster & needs into account). Hopefully if we did end up at #11, one of the top 10 would fall to us. If not, we shouldn't settle for any of the players you listed, at least not without picking up an additional asset or 2. Here's hoping we drop to at least #10.