List all of the places he can realistically sign right now and start. There aren't too many places:
NYG - No, Eagles - No, Cowboys - No, Commanders - No
Lions - No, Packers - No, Vikings - No, Bears - No
Saints - No, Panthers - No, Falcons - No, Bucs - No
Seahawks - No, 49ers - Ehhhh, Rams - Duh, Cards - No
Pats - No, Dolphins - No, Jets - No, Bills - Maybe
Browns - Possibly, Bengals - No, Ravens - No, Steelers - No
Texans - No, Colts - No, Titans - No, Jags - No
Chiefs - No, Raiders - No, Broncos - No, Chargers - No
So by my count there are three teams he could possibly start - 49ers but Chip seems to want to make Kap work, Browns is an obvious choice as they are always looking for a QB but they did bring in RG3 and seem to want to give him a look and then the Bills, but they seem to like Taylor and there are reports they are talking contract extension with him.
So in reality, there might only be one real spot for him to start right away - Cleveland - and even that's a stretch.