The Right Sort of Man by Allison Montclair

In London after World War II, Iris Sparks and Gwen Bainbridge operate The Right Sort Marriage Bureau, which is a matchmaking service. When one of their clients Tillie is murdered, and Dickie, the man they set Tillie up with, is arrested for the crime, Iris and Gwen take it upon themselves to try and find the killer because they know Dickie is innocent. They also know the scandal of the crime could ruin their business. Luckily, Iris worked undercover during the war, and those skills come in handy, as can having a partner like Gwen, who also can think fast on her feet. The Right Sort of Man is a breezy, cozy mystery with colorful characters. Give to readers who enjoy Jacqueline Winspear, Susan Elia MacNeal, and Alexander McCall Smith.