No matter where he signs, I bet Kane takes the first part of next season off to get the surgery or surgeries he seems to badly need. Recuperate from those, rest up and find that competitive spark again, then sign with the team having the best season for a reduced/pro-rated amount.
Edmonton would be an incredible fit though, good chance they enter the season with this as their forward situation up until the deadline:
Kane-McDavid-Hyman
RNH-Draisaitl-Kostin ($1.5M)
Foegele-McLeod-Holloway/Lavoie/Bourgault/?
?-?
He would be an exceptional fit on the second line/PP even with his reduced abilities.