Every fingering that fits a hand
4400
moderate · barre · no 5
4600
easy
4420
easy
4450
moderate · barre · no 5
4470
moderate · barre · no 5
What is true of it
B7sus4 is B, E, F♯ and A — 1, 4, 5 and b7 counted from B.
On an instrument that cannot reach all 4, the 5 goes first, in that order.
The easiest of the 5 fingerings below is 4400: one finger, one of them barring the 4th fret, held at the 4th 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.
It leaves out the 5. 4 strings cannot carry 4 notes, and the 5 is the one this chord can lose without changing what it is.
Where its notes are on the neck
The brass dots are B, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
B7sus4/E
x470
B7sus4/F♯
bbcc
B7sus4/A
2402
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.