I’ve made a start at mapping the shops in Glastonbury - the result of which is that Glasto now has three quarters of all the places tagged with https://wiki.openstreetmap.org/wiki/Tag:shop=esoteric in the UK.
Some of these could be https://wiki.openstreetmap.org/wiki/Tag:shop=herbalist or https://wiki.openstreetmap.org/wiki/Tag:shop=jewellery; others may be better tagged as https://wiki.openstreetmap.org/wiki/Tag:shop=gift (although that implies most purchases are for other people, which I’m not sure is the case here). There are some that offer alternative medicine or services such as tarot readings. But many of them offer such a mix of items and services that “esoteric” seems the only proper description.