I looked for guidance for carers.
The below looked like it has potential, and the org c-/w-ould be a place to ask for more sources
There are lots of links on the page. One is to “local help” which lists 895!! Sources ()see https://www.carersuk.org/help-and-advice/support-where-you-live/
Also the carers guides (one for England, Scotland &Wales lists national etc agencies