Talking to the Dead by Harry Bingham is the first in his Fiona Griffiths series, set in Wales, Fiona has an unusual condition.
Another recommendation for Belinda Bauer, they’re stand alone novels but some really interesting perspectives.
If you’ve not read Ian Rankin’s Rebus novels, you can’t go wrong with those.
If you like a bit of magic and fantasy with your crime, Ben Aaranovitch’s Rivers of London series is worth your time.
Claire Mackintosh’s DC Ffion Morgan series is one of my recent faves (only 3 books in the series so far though).
Christopher Brookmyre - his Jack Parlabane novels are so good, along with his Jasmine Sharp ones.
Colin Bateman’s Mystery Man novels - dark, funny, about a bookshop owner who only sells crime novels and ends up investigating crimes himself.