Just my opinion on unsettled closer situations.
Boston: Giving Barnes the nod because he's further along.
Tampa: Everyone has anointed Alvarez, and he's the best bet, but don't be surprised if the Rays get cute and have multiple pitchers close games.
Baltimore: Givens has been absolutely terrible this spring. Given how few win the Orioles are expected to have this season, it may take a little while to figure out who is next in line.
White Sox: Colome is the favorite here, but it wouldn't surprise me if Herrera gets 25-33% of the save opps. There was a question whether or not he'd even be ready for OD, but he's done well. Colome will have a short leash.
Minnesota: Sounds like a Parker/May committee, but I would lean May. If you have one, wouldn't hurt to handcuff with the other.
Kansas City: Peralta will close. Boxberger has looked terrible this spring. Have also read about Peralta developing a "closers mentality". KC has a few good young options coming down the pipeline.
Arizona: Holland looked done. Bradley has the goods to close, but ff the Diamondbacks decide to keep him in the fireman role, Hirano will close.
Atlanta: Vizcaino but the Braves are going to work Minter in as soon as he's healthy.
Chicago Cubs: Sounds like Strop will begin the season as closer, but may be spelled by Cishek. Nobody has any confidence in Morrow staying healthy for an extended period of time.
Milwaukee: Kimbrel landing spot? If not, Hader will likely split duties with someone else.
Philadelphia: Don't see any reason why Kapler won't have multiple pitchers closing games again.
Giants: I don't see how the Giants can have Melancon pitch in high leverage with how he's looked this spring.
St. Louis: I'd lean Hicks with Miller receiving some chances if he can stay healthy. Neither have looked outstanding this spring.