Plugin Boutique - Inspirational MIDI effect that makes finding chords and progressions intuitive and fun
AudioCipher - AudioCipher is the text-to-midi DAW plugin that transforms words into MIDI melodies and chord progressions.
Captain Chords - Write chord progressions in your favorite DAW
RIFFER by Audiomodern - A top-rated smart MIDI tool that generates musical Riffs & Sequences. The best and most feature-rich generative MIDI Sequencer on the market.
Instachord - MIDI Processing Plugin that helps you play chords and chord progressions faster and easier.
Cthulhu - VST MIDI-FX plugin for harmonic inspiration