Alternatives to the ProCo Sterling Vermin

ProCo Lil Rat

Shared character: filter, aggressive_playing, distortion

ProCo RAT 2

Shared character: filter, aggressive_playing, thickness

RHC Audio Ydrat

Shared character: filter, distortion, s_build_quality

Boffin FX Dino-Mite Distortion #129

Shared character: aggressive_playing, thickness, distortion

MXR Distortion+

Shared character: thickness, distortion, overdrive

EarthQuaker Devices Special Cranker

Shared character: spongy, distortion, overdrive

Catalinbread Karma Suture

Shared character: sweet, thickness, distortion

MXR Prime Distortion

Shared character: aggressive_playing, distortion

Fuzzrocious Blast Furnace

Shared character: aggressive_playing, distortion, boutique_stuff

Catalinbread CB-Distortion

similar tone character

Boss SD-1 Super OverDrive

similar tone character

Pigtronix Disnortion Micro

similar tone character

RHC Rat Turbo Rat Distortion

Shared character: aggressive_playing, distortion, s_build_quality

MXR M115 Distortion III

Shared character: sweet, aggressive_playing, distortion

Tru-Fi Rat Pack Compact

Shared character: aggressive_playing, distortion

Dunlop MXR M94SE Super Badass Distortion

similar tone character

Fulltone OCD Obsessive Compulsive Drive

similar tone character