Several teams have been linked to Kane in the past. The main contenders seem to be the Buffalo Sabres, Dallas Stars, Florida Panthers, and Colorado Avalanche. There are likely to be others interested as well but those are teams confirmed to have kicked the tires on Kane.
With this in mind, only one team mentioned before has significant cap space to bring in Kane. The Buffalo Sabres have around four million in cap space. All of the other teams would need to make a move to clear space.
The other teams could work with some of the bottom teams in the NHL who could be incentivized to take on some salary. As the Kane rumors continue to heat up, the hockey world will wait and watch closely for his next destination.