Tippet, Sutter & Bylsma are the best available ones on the market with NHL experience.
Sutter- doesn't like the East coast as much since he's got some deep roots out west, and his system stifles offense. Henrik would love Sutter IMO... the system the Kings play this year is the Sutter system + the 4th man (Doughty) jumping in. If that system is implemented in NY, you'd see the breakdowns stop. Very goalie friendly D-Structure.
Bylsma- was riding Crosby's jock for years, and with weaker teams, he got lottery results. IMO he's nothing special.
Tippet- is another guy that can do a lot with a weaker roster, but he stifles youth... didn't do a great job in ARI with their kids, but he's another guy that can implement a tighter system.
Wildcards:
Sheldon Keefe- Considered an up and coming coach... but the Marlies always load up their farm. The last time a Marlie coach got this much hype it was Corsi King Dallas Eakins... who shanked it at the NHL.
Adam Oates- You'd get a top PP, and a lot of skill development with him. But both his coaching stints were constraining on the rosters. Not sure if he'd get another swing.
Todd McLellan- EDM could let him go alongside Chia this year.... he's got a great track record... but could be AV 2.0.
David Quinn- Lots of hockey smarts with this guy, and has been on some teams shortlist... but he's got a very comfortable post... the type that coaches don't give up.
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I would consider Sutter a need based upgrade off of AV. He's developed players too. Tippet isn't known for that. Bylsma has gotten out-coached in the past... not sure if he's worth it.
I like Jackson out of Union... but the system and emphasis on skating more than anything else. He's done wonders with tier 3 college kids. Pretty incredible job from a talent perspective... to win without a single upper echelon recruit.
Teams also really like the guy out of Denver, don't remember his name, but you'll see some more NHLers coming out of that program. He's another one like Quinn, those aren't posts you leave.