Alternatives to the Mentha Works Monk Echo

Hologram Electronics Infinite Jets

Shared character: infinite sustain, delay, mono synth

Electro-Harmonix Freeze

Shared character: infinite sustain, ambient

Art Old Blood Noise x Emily Hopkins Parting Glitch Device

Shared character: delay, ambient, reverb

Chase Bliss Mood MKII

Shared character: mono synth, delay, ambient

Death By Audio TSA

Shared character: studio, full

Strymon Mobius

similar tone character

Walrus Audio Qi Etherealizer

similar tone character

Chase Bliss Lost + Found

similar tone character