Every fingering that fits a hand
131113
moderate · barre
131044
hard · barre
xx3044
easy · no 5
131143
hard · barre
xx3143
hard · no 5
What is true of it
Fm9 is F, A♭, C, E♭ and G — 1, b3, 5, b7 and 9 counted from F.
On an instrument that cannot reach all 5, the 5 and 1 go first, in that order.
The easiest of the 5 fingerings below is 131113: 3 fingers, one of them barring the 1st fret, held at the 1st fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
3 of the 5 need a barre.
Where its notes are on the neck
The brass dots are F, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
Fm9/A♭
43304x
Fm9/C
x33044
Fm9/E♭
x65064
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.