Rachel at Little Vintage Photography offers a darkroom setup by the hour. Rachel’s well entrenched in the world of film photography and is a good person to guide you through learning the skills required.
DotArt has been around for a long time in Liverpool. I have little to no knowledge of their darkroom setup but it all looks similar to Lightbox in terms of workshops and access.
From the founder of Photo Parlour, a darkroom I knew of over the years, Make It Easy seem to be an excellent setup for anyone near or willing to travel to Derby.