My pinky is weak, but it's getting better since I started treating all chords as barred, which forces the pinky to work on almost every chord.
Surprised I didn't see the most obvious Dm alternative above -- a barred Am at the 5th fret (or a partial omitting the 6th string, which will get the root on the D). I can slide my barre up 5 frets faster than I can reshape for the open ("barre 0") Dm.