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
(668)ZUN
(358)Noriyasu Agematsu
(342)Junko Miyajima
(206)Saori Kodama
(172)DECO*27
(156)Shôko Fujibayashi
(134)Yuki Kajiura
(129)Satoru Kôsaki
(118)Kôhei Tanaka
(117)Daisuke Kikuta
(115)Yôhei Matsui
(115)Kanata Nakamura
(114)HoneyWorks
(109)Yôko Kanno
(109)Chiyomaru Shikura
(104)Giga
(93)Junpei Fujita
(93)Hiroyuki Sawano
(89)Ayase
(82)Yûho Iwasato
(80)Stack
(79)ZUTOMAYO
(79)Kanaria
(78)ryo (supercell)
(76)meg rock
(75)Natsumi Tadano
(73)Eve
(71)Jun Maeda
(69)Numa
(65)Stack Bros.
(65)R・O・N
(64)Rockwell
(63)ZAQ
(63)Hironobu Kageyama
(62)Hyadain
(62)TAKE
(62)EFFY
(60)Yasushi Akimoto
(60)Tom-H@ck
(59)atsuko
(59)Sumiyo Mutsumi
(57)KATSU
(56)Ryûtarô Fujinaga
(56)Shunsuke Kikuchi
(56)Shô Watanabe
(56)Shôta Horie
(56)ARM
(55)Kanata Okajima
(55)Kôshi Asakawa
(55)TRUE
(55)Yuriko Mori
(55)Ôji Hiroi
(55)TSUNKU♂
(54)Yukinojô Mori
(54)hotaru
(54)KOTOKO
(53)Tomokazu Tashiro
(53)Erica Masaki
(52)Hitoshi Fujima
(52)Kyô Takada
(51)Alessandra Valeri-Manera
(50)Masayoshi Ooishi
(50)TeddyLoid
(50)Yuki Honda
(50)Emi Inaba
(49)Asuka Oda
(48)Tomoya Tabuchi
(48)shito
(48)Hige Driver
(47)Keiichi Okabe
(47)Michiaki Watanabe
(47)Shôko Oomori
(47)Yasuhiro Obata
(47)syudô
(47)Jin
(46)Menma
(46)Satoshi Yaginuma
(46)Shôji Meguro
(46)Taku Inoue
(46)40mP
(45)Tomoki Kikuya
(45)Hidetoshi Satô
(44)Katsuhiko Kurosu
(44)Yasutaka Nakata
(44)eba
(44)Hikaru Utada
(43)Takuya Watanabe
(43)Ayaka Miyake
(42)Gérard Salesses
(42)Hidekazu Tanaka
(42)Nobuo Uematsu
(42)Yûsuke Shirato
(42)Ayato Shinozaki
(41)Kôtarô Odaka
(41)Masaki Iehara
(41)Three
(41)Daisuke Asakura
(40)HOYO-MiX
(40)Hayato Yamamoto
(40)