Valhalla Super Massive
Valhalla Super Massive is a powerful and flexible plugin that can add lush, ethereal textures to your shoegaze guitars. It's totally free but it's a serious production tool! I myself use it quite often to produce my music because it's just incredible.
Setup Valhalla Super Massive
You can either insert Valhalla Super Massive on your track directly or can be used as a send effect on an auxiliary bus. Both approaches have their own advantages in different situation.
In short, using it as a send effect will give you more control over the wet/dry balance because you are copying a dry signal to the aux without changing the original signal. Also, it allows you to use the same reverb settings across multiple tracks.
Either Choose A Preset Or Experiment from Scratch
Valhalla Super Massive comes with a list of great preset that is production ready in my opinion. My favourite is SeaBeams. You can choose a preset and keep tweaking the parameters until satisfied or start from scratch.
Extra Tips
By using Valhalla Super Massive as a send effect, you can further process the effect using other plugins! For example, I always add a EQ after the Valhalla Super Massive because it allows me to fine-tune the sound.
I'm sure this FREE plugin is a powerful tool for shoegaze musician. Just keep tweaking and you'll sculpt your own perfect space!