Here is a video how-to on thickening vocals.

This process will give you a fuller, wider vocal sound.

Its showing the process using the Studio One DAW, but the same technique can be applied to any DAW.

YMMV.

So I am a major VST nerd and I really enjoy the convenience of keeping most things in ITB. I don't have anything but an LA-610 for outboard other than a Tascam DM-4800 which is as warm as. .well, it's not warm. So, I am totally reworking my monitoring end of my studio and adding some OTB analog summing. I am also, after that, planning on beefing up the front end with some more nice pres.