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
(746)ZUN
(388)Noriyasu Agematsu
(363)Junko Miyajima
(264)Saori Kodama
(224)DECO*27
(184)Yôhei Matsui
(166)Shôko Fujibayashi
(164)Yuki Kajiura
(145)Daisuke Kikuta
(143)HoneyWorks
(140)Satoru Kôsaki
(133)Kôhei Tanaka
(130)Kanata Nakamura
(126)Yôko Kanno
(126)Hiroyuki Sawano
(117)Junpei Fujita
(116)Chiyomaru Shikura
(111)Giga
(110)Andy Knote
(100)Ayase
(100)Yûho Iwasato
(100)Stack
(93)ryo (supercell)
(91)Jun Maeda
(87)Kanaria
(85)meg rock
(83)ZUTOMAYO
(82)Shôta Horie
(79)Yasushi Akimoto
(79)Ryûtarô Fujinaga
(78)R・O・N
(78)Eve
(77)Natsumi Tadano
(77)Asuka Oda
(75)Stack Bros.
(75)TRUE
(75)Hironobu Kageyama
(74)TSUNKU♂
(74)EFFY
(73)Yukinojô Mori
(73)TAKE
(71)TeddyLoid
(71)ZAQ
(71)Numa
(70)Sumiyo Mutsumi
(70)Kanata Okajima
(69)Rockwell
(69)Yuriko Mori
(68)Shô Watanabe
(67)Hyadain
(66)hotaru
(66)Erica Masaki
(65)KATSU
(65)Tom-H@ck
(65)Yamato Kasai
(65)Shunsuke Kikuchi
(64)Yuki Honda
(64)atsuko
(64)Takuya Watanabe
(63)Yasuhiro Obata
(63)shito
(63)Cassie Wei
(61)Hitoshi Fujima
(61)Masayoshi Ooishi
(61)Tomoki Kikuya
(61)Yûsuke Shirato
(61)Shu Kanematsu
(60)Hayato Yamamoto
(59)Kôshi Asakawa
(59)Ayaka Miyake
(58)KOTOKO
(58)Tomoya Tabuchi
(58)syudou
(57)Satoshi Yaginuma
(56)Ôji Hiroi
(56)ARM
(55)HOYO-MiX
(55)Menma
(55)Tomokazu Tashiro
(55)Jin
(54)eba
(54)Katsuhiko Kurosu
(53)Kyô Takada
(53)Hige Driver
(52)Kelly
(52)TATSUNE
(52)Taku Inoue
(52)Alessandra Valeri-Manera
(51)Emi Inaba
(51)Shôko Oomori
(51)Alan Menken
(50)Keiichi Okabe
(50)Calliope Mori
(49)Kaoru Ookubo
(49)Masami Okui
(49)RUCCA
(49)40mP
(48)MIMI
(48)Yasutaka Nakata
(48)