Karaoke Mugen 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
(592)Noriyasu Agematsu
(333)ZUN
(315)Saori Kodama
(151)Junko Miyajima
(147)DECO*27
(146)Shôko Fujibayashi
(127)Yuki Kajiura
(122)Kôhei Tanaka
(113)Satoru Kôsaki
(112)Yôko Kanno
(104)Chiyomaru Shikura
(101)Daisuke Kikuta
(99)Kanata Nakamura
(90)Junpei Fujita
(87)Yôhei Matsui
(87)Hiroyuki Sawano
(85)HoneyWorks
(84)Giga
(75)ryo (supercell)
(74)Kanaria
(73)meg rock
(72)Stack
(71)Yûho Iwasato
(71)Ayase
(68)Jun Maeda
(67)ZUTOMAYO
(65)Natsumi Tadano
(62)Eve
(61)Hironobu Kageyama
(61)Hyadain
(60)R・O・N
(58)atsuko
(58)Numa
(57)Stack Bros.
(57)KATSU
(55)Rockwell
(55)ZAQ
(55)Shunsuke Kikuchi
(54)Sumiyo Mutsumi
(54)Yasushi Akimoto
(54)TRUE
(53)Ôji Hiroi
(53)Hitoshi Fujima
(51)Kanata Okajima
(51)Ryûtarô Fujinaga
(51)Shô Watanabe
(51)Yukinojô Mori
(51)ARM
(50)Alessandra Valeri-Manera
(50)TSUNKU♂
(50)Yuriko Mori
(50)hotaru
(50)Shôta Horie
(49)EFFY
(48)KOTOKO
(48)Emi Inaba
(47)Kyô Takada
(46)Michiaki Watanabe
(46)Shôji Meguro
(46)Tom-H@ck
(46)Tomokazu Tashiro
(46)Satoshi Yaginuma
(45)Shôko Oomori
(45)Hidetoshi Satô
(43)Katsuhiko Kurosu
(43)Gérard Salesses
(42)Hige Driver
(42)Masayoshi Ooishi
(42)Nobuo Uematsu
(42)Yuki Honda
(42)Keiichi Okabe
(41)Taku Inoue
(41)Tomoya Tabuchi
(41)Yasutaka Nakata
(41)Hikaru Utada
(40)syudou
(40)Masami Okui
(39)Ayato Shinozaki
(38)Calliope Mori
(38)Daisuke Asakura
(38)Erica Masaki
(38)RM
(38)Three
(38)Takayuki Negishi
(38)TeddyLoid
(38)Yasuhiro Obata
(38)Yûsuke Katô
(38)Akira Kosemura
(37)Hayato Yamamoto
(37)Sayaka Ogawa
(37)Sui Ishida
(37)Takuya Watanabe
(37)eba
(37)Akio Inoue
(36)Arika Takarano
(36)Jean-François Porry
(36)Kiyomi Kumano
(36)TAKE
(36)Yasuo Kosugi
(36)