Alternatives to the Boss FZ-5 Fuzz

Fulltone OF-1 Octafuzz

Shared character: original, one octave

Tru-Fi Octavia Fuzz

Shared character: one octave, vintage charm

Fulltone OF-2 Octafuzz

Shared character: one octave, overdrive

Zvex Octane 3

Shared character: one octave, vintage charm

Tru-Fi Super Fuzz PBF Compact Version

Shared character: original, one octave

JHS Pedals JHS Coyote Octave Moonrock

Shared character: one octave, vintage charm

Vox Trike Fuzz

Shared character: one octave, treble, vintage charm

Fairfield Circuitry The Unpleasant Surprise

Shared character: fat, one octave, treble

Source Audio Kingmaker

Shared character: one octave, vintage charm

JAM Pedals Octaurus

Shared character: one octave

Fender Kevin Shields Blender

Shared character: original, one octave, vintage charm

Beetronics Octahive Dual FS

Shared character: one octave

MXR M267 Octavio Fuzz

Shared character: one octave, vintage charm

Beetronics Octahive Custom Boomerang

Shared character: one octave

Beetronics Octahive Shop Origami

Shared character: one octave

MXR M103 Blue Box

Shared character: fat, one octave

T-Rex Octavius

Shared character: one octave

Dunlop JH-3S Jimi Hendrix Signature System Octave

Shared character: one octave, overdrive

Beetronics Octahive Custom Cobogo

Shared character: one octave

JHS Pedals JHS Coyote

Shared character: one octave

Spaceman Nebula (Gloss Steel)

Shared character: one octave

Beetronics OC-BS

Shared character: one octave

Dunlop BFGO7 Billy Gibbons Octavio

Shared character: one octave

Pigtronix Octava

similar tone character