Every fingering that fits a hand
x470
easy
x452
easy
9977
hard
997x
easy
9bcc
hard
What is true of it
Esus4 is E, A and B — 1, 4 and 5 counted from E.
These are also the notes of Asus2/E. Which name is right depends on what is underneath and what came before — the notes alone do not decide.
The easiest of the 5 fingerings below is x470: 2 fingers, 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.
1 string stays silent.
Where its notes are on the neck
The brass dots are E, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
Esus4/A
2402
Esus4/B
4400
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.