SportsPulse: NFL teams are starting to show strong interest in signing Colin Kaepernick. Mackenzie Salmon looks at the best fits that could give Kaepernick a chance to play quarterback right away. » Subscribe to USA TODAY Sports: https://bit.ly/2L0ktE1 » USA TODAY delivers current local and national news, sports, entertainment,  finance, technology, and more through award-winning journalism, photos, videos and VR. #Kaepernick #NFL #Steelers