Where can I look for the gear Sóley uses?

Find and submit the microphones, pianos, keyboards, synths, and other instruments used by Sóley.

If the artist is active on social media, check places like their Instagram feed and look for musical equipment they can be seen using.

You should also do a Google image search for things like "Sóley studio" and "Sóley live" and spot gear that way.