Random pitch modulation delay with drive.

[blearyeyes]

I've been using a few cool plugins that I love the sound of one is the Waves Abby Road Reel ADT. It is an emulation of the vocal doubling technique using a tape deck they developed for the Beatles but it works great for guitar. You can modulate the delayed signal with waveforms but the one I really love is the random one.

https://www.waves.com/plugins/reel-adt