The cello. Fuckin’ love it.

Upright piano with the front panel taken off

Hang / Hand pan and Hurdy Gurdy!

Feed me brussel sprouts and I can really feel the waves of sound.

They’re like little depth charges.

I came in here all wrong. I was going to say a large office printer/copy machine has that thrum you feel, the rhythm of each page flipping and printing, and the smell of warm micro plastics.

All of them if you’re on enough LSD!

Organ i think, but it probably helps that it’s usually played in a big stony building (church).

The humble kalimba has some of the qualities I think you are describing. Also just a regular nylon string guitar.

Gong
Singing bowls / tibetan bowls

https://en.m.wikipedia.org/wiki/Hammered_dulcimer

• Steel drums do this for me
• Oboes
• some brass instruments (depends on the player…if they can achieve that crystal clear tone)
• Taiko ensembles!
• if live, mandolin, dulcimer, lute

Edit 1: The venue acoustics will also factor heavily too.

Edit 2: ooh! Didgeridoos! Also best if live.

The French horn, from someone who knows how to play it well.