Cozy Mysteries discussion

Cat in the Stacks mystery series has a male main character.

Cat in the Stacks does have a male MC. (Don't be fooled by the name of the author, Miranda James. The author's real name is Dean James and a male.)

My Sandy Fairfax cozy series has a male protagonist. Sandy (real name Stanford Ernest Farmington) is a 38-year-old former teen idol turned amateur sleuth. Not a Ghost Hunters or Fortune Tellers-type story, but has humor, fun characters and good detecting work.

Tim Myers books usually have a male MC.

The Cat who series by Lilian Jackson Braun, has main Male character named Jim Qwilleran.

Michael Bond's Monsieur Pamplemousse series
M.L. Longworth's Verlaque & Bonet
Rex Stout's Nero Wolfe

There are a number of historical mysteries with male main characters.

Supper Club by Ellery Adams also has a male MC.

John J. Lamb’s books also have a male protagonist. Many books associated with TV series also have male main characters, such as those for Psych, Monk, and Diagnosis Murder. I would also recommend Aaron Elkins.