I have the same IV Chrom and I just stuck with his default B skill, Chill Def. Gives him more effective attack and his speed isn't the most amazing thing in the world anyway. +HP gives him more health to utilize fury better and he works perfectly well for me in a horse emblem team for TT.
Outside of TT, I still think Chill Def is probably one of his better options. You could go for the BrashDesp set though, i'm sure it'd work nicely and synergize well with Fury.