Jon Heyman had a very cool piece where he predicted what he thinks each free agent will sign for. Ok, that's not all that special. However, he also has a prediction for each player made by and anonymous GM and agent.
It is really interesting to see how wide ranging the guesses are for the top end free agents and then not surprisingly it is pretty consistent once you get down to the middle and lower tier players.
Here is Jon's piece: Jon Heyman Free Agent Predictions
Here is P2's rundown of the article which includes multiple articles: Tim Williams Free Agent Article Collaboration