Where will Philip Rivers go?

For the past 16 years he has been playing for the Los Angeles Chargers. After this last season the GM of the chargers said that he will be giving him the chance to go up on the market. I think that it might be a good idea for him to try his luck somewhere else for maybe a season or 2. I do think that he still has a lot of talent he just needs a better line in front of him and a little more talent for wide receivers.