Hi College of Psychic Studies is good - I used to be a student there. Anthony has a good reputation. Do ask for somebody senior. But do be clear what you are looking for. A medium specifically gives 'proof of life after death' - helpful if you want to get back in touch with someone who's passed over. Messages will come from spirit guides that are often personal to you - ie parent, grandparent, etc. Psychics and clairvoyants give a different type of reading although many, not all, also have mediumistic ability. Messages therefore may come from other types of guides, realms, dimensions. Depends what you're after.
Jack Cloake ● 4156d