Tactile switch technologies for soft feel
I found the magic Google search words are "long travel tactile switch" or "soft touch tactile switch".

The long travel, soft feel switches have rubber domes instead of the metal domes with travel typically 1.3 mm versus the metal dome switches often around 0.3 mm travel.

You can also get just the rubber domes if you want to build your own buttons into your enclosure such as if you're injection molding your own case.

This one has a nice video of how the buttons work:
https://www.omron.com/ecb/products/sw/24/b3al.html

Whole pile of bare rubber dome buttons from China:
https://www.aliexpress.com/cheap/cheap-rubber-button-switch.html