If you liked the Tactics manga, the Anime-Planet community thinks you'd like:
Although I haven't finished either of these Manga series; I recommend if you liked one of them, you'll like the other. The stories are extremely similar although Hanako seems to be slim on the shounen-ai.
Natsume is lonely; he has an ability that separates him from others: he can see and interact with spirits. Soon, however, Natsume discovers that he’s not alone: his grandmother Reiko also had the gift. But things get hectic and possibly dangerous for Natsume when he finds out that he also inherited the 'Book of Friends', a book that contains the names of all the spirits Reiko defeated and subjugated. He finds himself hounded by his grandmother's underlings and, with the help of a 'cat' charm spirit, decides to free them from the Book's shackles, as well as protect the book from those who seek to misuse its power...
Both Natsume Yuujinchou and Tactics follow a young man interacting with youkai. Both have a similar sort of monster-of-the-week style about them and heavily reflect the more supernatural side of Japanese culture.
In order to bridge the gap between humans and youkai, The Ministry of Spirit Affairs was formed. Military man Kei Agemaki is assigned to the new unit and seems to be the ideal candidate. He’s charming, polite, and a complete gentleman, but there’s just one problem: he’s absolutely terrified of spirits! When he arrives at the new headquarters, Agemaki is partnered up with a cute, yet brash, youkai named Zakuro. Now the unlikely pair must work together to solve the region’s spirit-related problems to help improve relations between humans and youkai, and maybe help Agemaki overcome his crippling fear while they’re at it.
Both of these manga are steeped in Japanese folklore and focus on humand and youkai working together to solve supernatural problems. Both also have a decent dose of comedy, so if you enjoy one, try reading the other.
At first glance, Kimihiro Watanuki appears to be a normal high school student; but little do people know that not only is Watanuki able to see spirits, but he's also a magnet for them! One day, after being chased by one such spirit, Watanuki happens upon a strange building. There he meets a mysterious witch named Yuuko, who claims she can get rid of his ability to see spirits - for a price: Watanuki must work as her housekeeper until he has paid off the cost of granting his wish. Now Watanuki's eyes are being opened to an entirely new side of the world as he assists Yuuko in her work, all while balancing the housework, his schoolwork, and most importantly, ensuring that Yuuko is never out of sake!
Both Tactics and xxxHolic are supernatural-based manga that are heavily rooted in Japanese culture and mythology. Though xxxHolic has more of a mysterious fate-oriented plot, if you like one, it's worth trying the other.