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