If you're looking for manga similar to Dirty Pair, you might like these titles.
When Kane Blueriver, Milly, and Canal seek out wealth aboard the star ship Sword Breaker, many mishaps will ensue, as these trouble contracters take on bounty cases across the universe. That is, until Kane discovers the secret behind his grandmother's ship and the ever expanding threat of Nightmare, an evil crime syndicate that wants to rule the universe.
Lean, mean, and always on the preen, Dandy is a slick space explorer looking to make a buck on the next unidentified alien species that has the misfortune of crossing his path! That is, provided he doesn't get eaten by monsters, shot down by the baddies on his tail, or distracted by a sweet rack at his favorite bar, BooBies, first! Sail into intergalactic adventure with Space Dandy, a dandy guy in space!
Riki has been reassigned to a different department in the police department. Riki, disliking paperwork, is glad to hear that he doesn't have to do any paperwork since his new assignment is to test drive a new vehicle secretly invented within the department. The new vehicle, however is beyond Riki's imagination; a talking car covered with a mascot girl on all sides. The car is a "Patrol Car with Artificial Intelligence & Technical Illustration" named Pattie 2000 and it talks like a human. A car that can talk, react to situations quickly, and has all sorts of technological advancements such as maps appearing on glass... and it can transform into a girl!?!? Technology is grand, isn't it?