The atmosphere in both Tokyo DOGS and Bitter Blood involves comedy, as well a reoccurring villain for most of the episodes. Both also explore the relationship between the two main characters who make up a hilarious duo, as well as between them and the supporting characters (their team). Both also focus on the characters' roles as detectives. If you love one, you'll surely love the other!
One of four seasons, this is a Korean medical drama that I would definitely recommend if you like the crim aspect of Bitter Blood! While God's Quiz is focused on strange diseases to solve crime, it is also largely centred around a dark past for one of the main characters. While it has less comedy than Bitter Blood it is still a great watch!
Both have funny characters with serious cases, also both dramas partners are great combo (even if in Bitter Blood they say that they hate each other while in doS they like each other openly) also Bitter Blood is more realistic while in doS have some unrealistic, "Manga/Anime" style moments (although it's only few moments)