Scales to Play Over Fsus4
Every chord is a subset of several scales: any scale that contains all of a chord's tones fits over it. Pick a chord to see the matching scales from its own root, the major keys the chord belongs to, and full fretboard diagrams for every scale on guitar.
An Fsus4 chord contains the notes F – Bb – C. Any scale that includes every one of those 3 tones fits over it — from the root F, that means F Major, F Natural Minor, F Melodic Minor, F Harmonic Minor, F Minor Pentatonic, F Blues, F Dorian, F Phrygian, F Mixolydian, F Dorian Bebop, F Mixolydian Bebop and F Spanish. They differ only in the notes between the chord tones, and that is where each scale gets its color.
Fsus4 is also diatonic to 5 major keys: Bb major (relative minor Gm), Db major (relative minor Bbm), Eb major (relative minor Cm), F major (relative minor Dm), Ab major (relative minor Fm). In a song from one of those keys you can also solo with the key's own major scale or its relative minor pentatonic across the whole progression, not just this chord.