If you're looking for manga similar to Joker, you might like these titles.
In the Kingdom of Wardell Ceram, a realm rich in flowers and trees, the charming duo of Luca and Sylvain live outside the law. As the Wolf Claws, they are a chivalrous thieves who target those nobles who commit evil deeds. Their deeds bring them to the attention of the Kingdom's Princess, who wants to recruit them for a very special task. A romantic comedy about love that transcends class!
Akira Ijyuin lives a double life. By day, he's a top student at the elite CLAMP School, but by night he's the infamous thief 20 Faces. A master of disguise and stealth, the masked thief steals the most unusual objects at the whim of a pair of devious crime-lords...his two mothers! One starlit night, his routine is changed forever when he meets the lovely young Utako while hiding from the police. This time, Akira finds something was stolen from him--his heart.
Lidia is a young empress with a pendant that has a counterpart out there somewhere – which is carried by a young thief tamed Keitsu who runs with wolves. The thief and the empress become friends fairly quickly as they figure out the significance of their respective pendants, but they don’t realize that the entire world is about the be changed by them…
In this city, there is a legendary thief. An eccentric thief who lived down through the generations. A story that's told for generations. His name is Mugensai Ishikawa.
Goemon Ishikawa, the legendary king of thieves from the feudal era, has come to know that there is an important treasure being transported from the Imperial Palace to the Kamiyama mansion; an ancient artifact called "moon's melody box". Surprised by the extreme measures taken by the guards of this treasure, his indomitable spirit aches to steal this rare item that once a year can grant one special wish to whoever possesses the box, but it will not be so easy to steal it. Even worse, once it is opened, it will be harder to deal with the unusual contents of the box
During the day, the three Katsugi sisters are the proud owners of the Cat's Eyes Café; but at night, Hitomi, Rui and Ai become the most wanted thieves in town! After sending a preliminary business card to the police, warning them of what they play to swipe next, the girls rob the most precious pieces of art from well-guarded museums and secured private collections. The sisters, however, do not steal for money; everything they steal belonged to their father. By collecting his items, the girls are hoping to find clues that will help explain his vanishing in 1945. However, on the other hand, the clumsy Inspector Toshio Utsumi is on a mission to stop the Katsugi sisters; what he didn’t plan for was the fact that that his fiancée is one of them...