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
(754)ZUN
(390)Noriyasu Agematsu
(365)Junko Miyajima
(271)Saori Kodama
(226)DECO*27
(184)Yôhei Matsui
(168)Shôko Fujibayashi
(165)HoneyWorks
(151)Daisuke Kikuta
(145)Yuki Kajiura
(145)Andy Knote
(137)Satoru Kôsaki
(133)Kôhei Tanaka
(130)Kanata Nakamura
(126)Yôko Kanno
(126)Hiroyuki Sawano
(120)Junpei Fujita
(117)Chiyomaru Shikura
(112)Giga
(110)Ayase
(102)Yûho Iwasato
(100)Stack
(93)ryo (supercell)
(91)Jun Maeda
(88)Kanaria
(85)meg rock
(84)Shôta Horie
(82)ZUTOMAYO
(82)Yasushi Akimoto
(80)Natsumi Tadano
(79)R・O・N
(78)Ryûtarô Fujinaga
(78)Asuka Oda
(77)Eve
(77)Hironobu Kageyama
(77)Stack Bros.
(75)TRUE
(75)EFFY
(74)TSUNKU♂
(74)Yukinojô Mori
(73)ZAQ
(72)TAKE
(71)TeddyLoid
(71)Numa
(70)Sumiyo Mutsumi
(70)Kanata Okajima
(69)Rockwell
(69)shito
(69)Erica Masaki
(68)Shô Watanabe
(68)Yuriko Mori
(68)Yuki Honda
(67)hotaru
(66)Hyadain
(66)KATSU
(66)atsuko
(65)Tom-H@ck
(65)Yamato Kasai
(65)Hayato Yamamoto
(64)Shunsuke Kikuchi
(64)Takuya Watanabe
(64)Yasuhiro Obata
(64)Shu Kanematsu
(63)Masayoshi Ooishi
(62)Tomoki Kikuya
(62)Cassie Wei
(61)Hitoshi Fujima
(61)Yûsuke Shirato
(61)Kôshi Asakawa
(59)KOTOKO
(59)Satoshi Yaginuma
(59)Tomoya Tabuchi
(59)Ayaka Miyake
(58)Henk Flemming
(58)Menma
(57)Taku Inoue
(57)ARM
(56)Ôji Hiroi
(56)HOYO-MiX
(55)Kyô Takada
(55)Tomokazu Tashiro
(55)eba
(54)Jin
(54)Katsuhiko Kurosu
(54)Gom
(53)syudou
(53)TATSUNE
(53)Hige Driver
(52)Kelly
(52)Shôko Oomori
(52)Alessandra Valeri-Manera
(51)Emi Inaba
(51)Alan Menken
(50)Kaoru Ookubo
(50)Keiichi Okabe
(50)Calliope Mori
(49)Jorakuji Mio
(49)kz
(49)Masami Okui
(49)