It's fun to examine some of broader categories of anime that exist. There are harem anime like Infinite Stratos and Maken-Ki!, mecha-based shows like Evangelion or Gundam, slice-of-life comedy series based on 4-koma (four-panel) manga like Kin'iro Mosaic, which are referred to as "Nichijou-kei" by fans in Japan, plus the popular trend in music/idol related anime like K-On!, IdolMaster, Love Live! and Wake Up Girls! Another category that's gotten really popular lately is 妹系 imouto-kei series which center around a male main character's younger sister (either actual sister or unrelated by blood), which usually includes some gimmick, like the sister is into otaku culture and eroge, etc. The latest entry into this category is 最近、妹のようすがちょっとおかしいんだが Saikin, Imouto no Yousu ga Chotto Okashiinda ga ("Recently, My Sister is Unusual"), or ImoCho for short. It's the story of a boy named Yuya who gets a new stepsister named Mitsuki when his father gets remarried. When his new sister is possessed by a yuri-loving ghost named Hiyori who's got a bit of a "brother complex" as well as a supernatural chastity belt, much sexy comedy ensues. Like Kiss x Sis, ImoCho isn't exactly subtle, but you're looking for a new "guilty pleasure" anime to watch, you might enjoy it.