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
(643)ZUN
(341)Noriyasu Agematsu
(336)Junko Miyajima
(183)Saori Kodama
(164)DECO*27
(150)Shôko Fujibayashi
(131)Yuki Kajiura
(127)Kôhei Tanaka
(116)Satoru Kôsaki
(116)Kanata Nakamura
(111)Daisuke Kikuta
(105)Yôko Kanno
(105)Chiyomaru Shikura
(103)HoneyWorks
(103)Yôhei Matsui
(103)Junpei Fujita
(92)Hiroyuki Sawano
(89)Giga
(83)ZUTOMAYO
(78)Ayase
(77)ryo (supercell)
(76)Kanaria
(75)Yûho Iwasato
(74)meg rock
(74)Stack
(73)Natsumi Tadano
(69)Jun Maeda
(66)Eve
(65)Rockwell
(62)R・O・N
(62)TAKE
(62)Hironobu Kageyama
(61)Hyadain
(61)ZAQ
(60)Numa
(59)Stack Bros.
(59)Yasushi Akimoto
(58)atsuko
(58)EFFY
(57)KATSU
(55)Kôshi Asakawa
(55)Sumiyo Mutsumi
(55)TRUE
(55)Ôji Hiroi
(55)Ryûtarô Fujinaga
(54)Shunsuke Kikuchi
(54)TSUNKU♂
(54)Yukinojô Mori
(54)Kanata Okajima
(53)Shôta Horie
(53)Yuriko Mori
(53)Tomokazu Tashiro
(52)ARM
(51)Hitoshi Fujima
(51)KOTOKO
(51)Shô Watanabe
(51)hotaru
(51)Alessandra Valeri-Manera
(50)Tom-H@ck
(50)Kyô Takada
(49)Emi Inaba
(47)Masayoshi Ooishi
(47)Michiaki Watanabe
(47)Yuki Honda
(47)Satoshi Yaginuma
(46)Shôji Meguro
(46)Shôko Oomori
(46)syudô
(46)Erica Masaki
(44)Hidetoshi Satô
(44)Hige Driver
(44)Tomoya Tabuchi
(44)shito
(44)Hikaru Utada
(43)Katsuhiko Kurosu
(43)Keiichi Okabe
(43)Yasuhiro Obata
(43)Yasutaka Nakata
(43)40meterP
(42)Asuka Oda
(42)Gérard Salesses
(42)Jin
(42)Menma
(42)Nobuo Uematsu
(42)Taku Inoue
(42)Takuya Watanabe
(41)Tomoki Kikuya
(41)Daisuke Asakura
(40)Hayato Yamamoto
(40)Masaki Iehara
(40)TeddyLoid
(40)Yûsuke Katô
(40)Calliope Mori
(39)Kôtarô Odaka
(39)Masami Okui
(39)Three
(39)Yûsuke Shirato
(39)eba
(39)Ayato Shinozaki
(38)