Which free agent defencemen could the Canucks sign?

Eight defencemen ended the season on the Vancouver Canucks' roster. Just three of those defencemen have a contract for next season: Quinn Hughes, Carson Soucy, and Noah Juulsen. Canucks general manager Patrick Allvin has some work to do. Filip Hronek is a restricted free agent in line for a significant raise, who the Canucks could re-sign themselves or trade to another team for help in another area of need on their roster.