I doubt the Sox - or most teams - will have 7 better options in the bullpen.
I think the foundation for the 2020 pen includes Workman, Barnes, Hernandez, and Taylor. If anyone else makes it, Marcus Walden has a chance, although he is more likely to be the 2020 version of Ryan Brasier. ( Love to see the Sox trade career minor leaguer Walden for career minor leaguer Mike Yastrzemski.) Hembree might be offered arbitration and make maybe $2mill.
Brewer lost his biggest fan in DD. Wright should be non-tendered. And hopefully we’re seeing the last of Brian Johnson...