The hot stove in MLB will soon heat up. Teams will start making offers for the services of free agents to fill holes in their lineups and pitching staffs as they gear up to unseat the Houston Astros in 2018. This offseason’s free agent class is not great but it isn’t bad. There are bargains to be had as well as difference makers. Every MLB team will probably dip their toes in free agent waters. These are the one player that makes sense for each MLB team. These fits aren’t contingent upon anything other than that team’s need and financial status. These are the one free agent every MLB team should sign.