Northern Soul

I am a little too young to have been a mod, but Wikepedia says

Northern soul is a music and dance movement that emerged from the British mod scene, initially in northern England in the late 1960s. Northern soul mainly consisted of a particular style of black American soul music based on the heavy beat and fast tempo of the mid-1960s Tamla Motown sound. The most-prized recordings by collectors were from lesser-known artists which had been released only in limited numbers by small regional US labels such as Okeh, Cameo-Parkway and Roulette.

Wigan Casino had all nighters, no alcohol, no drugs


Another scene - Manchester's Twisted Wheel


There was a rush for rarity records but better known ones were included
The Four Tops


The Just Brothers


The O'Jays


There are a number of books and CD's at Amazon including
The Northern Soul Story, Vol. 1: The Twisted Wheel