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)Toei Animation
(799)SUNRISE
(767)A-1 Pictures
(479)PIERROT
(450)TMS ENTERTAINMENT
(450)J.C.STAFF
(438)SEGA
(432)MADHOUSE
(403)SATELIGHT
(371)Studio DEEN
(326)OLM
(319)Colorful Palette
(292)SHAFT
(273)bones
(266)Production I.G
(247)Toei Company
(199)AIC
(197)Kyoto Animation
(194)Tatsunoko Production
(180)GONZO
(176)MAPPA
(176)Doga Kobo
(161)SILVER LINK.
(161)XEBEC
(155)GALLOP
(146)Brain's Base
(129)Happy Elements K.K
(129)GAINAX
(124)P.A.Works
(124)BANDAI NAMCO Pictures
(121)Lerche
(119)8bit
(118)LIDENFILMS
(113)CloverWorks
(110)WIT STUDIO
(108)Nippon Animation
(106)Kinema citrus
(103)david production
(99)SQUARE ENIX
(97)BANDAI NAMCO Entertainment
(93)WHITE FOX
(89)diomedéa
(83)ARTLAND
(81)feel.
(77)Otomate
(76)TRIGGER
(75)ufotable
(75)Group Tac
(74)SANZIGEN
(74)SynergySP
(74)Studio GOKUMI
(73)SHIN-EI ANIMATION
(71)Ashi Productions
(69)SEVEN ARCS
(66)BANDAI NAMCO Games
(63)ZEXCS
(61)Harano
(60)HoYoverse
(60)ATLUS
(59)IOSYS
(58)Actas
(57)Bridge
(55)Nico Nico Doga
(55)project No.9
(55)Tezuka Productions
(53)fabthehedgehog
(51)07th Expansion
(48)Nitroplus
(48)Cygames
(47)CygamesPictures
(46)TNK
(46)BEE TRAIN
(45)C2C
(45)HAL FILM MAKER
(45)Nintendo
(45)Passione
(44)Riot Games
(44)manglobe
(44)OTOIRO
(43)SpindleHorse Toons
(43)BROCCOLI
(42)IDEA FACTORY
(42)ZERO-G
(41)omu
(39)Donuts
(38)asread
(38)Kamikaze Douga
(37)MAGES.
(37)Telecom Animation Film
(37)nanogram
(37)NOMAD
(36)TROYCA
(35)CAPCOM
(34)Arms
(32)Asahi Production
(32)Rejet
(32)CONNECT
(31)Production IMS
(31)STUDIO GHIBLI
(31)khara
(31)