kara.moe provides many collections, choose the ones you are interested in.
Asia (Music from Asian countries (Japan, South Korea, China, etc.)) Geek / Otaku (Anime/Video Games/Internet culture) Kana (Japanese songs with kana karaoke) Shitpost (Everything you do not want in your song library) West (Mainstream songs from around the western world)Aki Hata
(565)ZUN
(373)Noriyasu Agematsu
(305)Saori Kodama
(209)DECO*27
(172)Yôhei Matsui
(158)Shôko Fujibayashi
(151)Kôhei Tanaka
(123)Satoru Kôsaki
(121)Daisuke Kikuta
(119)Junko Miyajima
(117)Kanata Nakamura
(117)Yuki Kajiura
(117)Yôko Kanno
(115)Chiyomaru Shikura
(101)HoneyWorks
(101)Giga
(100)Hiroyuki Sawano
(95)Junpei Fujita
(90)Ayase
(85)Stack
(85)ryo (supercell)
(84)Yûho Iwasato
(83)Kanaria
(82)Andy Knote
(75)meg rock
(75)Eve
(74)Natsumi Tadano
(73)R・O・N
(72)Hironobu Kageyama
(68)Stack Bros.
(68)Numa
(67)Rockwell
(67)Jun Maeda
(66)Yukinojô Mori
(66)Sumiyo Mutsumi
(65)ZAQ
(63)Shôta Horie
(62)hotaru
(62)Asuka Oda
(61)TeddyLoid
(61)Shunsuke Kikuchi
(60)Shô Watanabe
(60)Yuki Honda
(60)Hyadain
(59)Erica Masaki
(58)Yuriko Mori
(58)Ryûtarô Fujinaga
(57)TRUE
(57)Hitoshi Fujima
(56)Tom-H@ck
(56)Yasushi Akimoto
(56)ARM
(55)Masayoshi Ooishi
(54)Ôji Hiroi
(54)Tomoki Kikuya
(53)KOTOKO
(52)Tomokazu Tashiro
(52)Tomoya Tabuchi
(52)ZUTOMAYO
(52)Alessandra Valeri-Manera
(51)Emi Inaba
(51)Jin
(51)syudô
(50)EFFY
(49)HOYO-MiX
(49)Keiichi Okabe
(49)Yûsuke Shirato
(49)40mP
(48)Calliope Mori
(48)KATSU
(48)Masami Okui
(48)Shôko Oomori
(48)eba
(48)Katsuhiko Kurosu
(47)Taku Inoue
(47)Yamato Kasai
(47)atsuko
(47)Hige Driver
(46)Shôji Meguro
(46)Takuya Watanabe
(46)kz
(46)Michiaki Watanabe
(45)Satoshi Yaginuma
(45)Gérard Salesses
(44)Kyô Takada
(44)TSUNKU♂
(44)Ayato Shinozaki
(43)Hidetoshi Satô
(43)Kanata Okajima
(43)Kaoru Ookubo
(43)Shûhei Mutsuki
(43)Three
(43)Cassie Wei
(42)Kenji Tamai
(42)Kiyomi Kumano
(42)Genki Mizuno
(41)Jorge Rivera-Herrans
(41)MIMI
(41)Nobuo Uematsu
(41)