Open shape
xx3210
Fmaj7 is the F major 7 chord. Its notes are F, A, C and E. An open, reflective color. The major seventh sits a semitone below the root.
xx3210
132211
x-8-10-9-10-8
Numbers show frets from the low E string to the high e string; x means don't play that string.
Fmaj7 is the Imaj7 chord in F major and the IVmaj7 chord in C major. That makes it a natural fit in songs written in those keys.
Every F, A, C and E on the first 12 frets. The filled dots are the root, F. Build your own shape from any nearby group.
Other F chords
Other major 7 chords