A lot of links i found browsing dcinside aka korean forum
•[Forum] 5ynt3ck's 7K BMS converts
⠀osu! Forum
⠀Full pack
⠀Individual song download spreadsheet

•[Forum] 7K Beatmap Collection for Beginners
⠀All ranked maps (2007 - )
⠀underjoy's BMS converts (Normal/Insane scale, PMS, DP!)
⠀O2JAM Interval Song Packs [Forum Link]
⠀Piano 7K BMS Pack
⠀Maplestory 7K Piano Pack
⠀Pike's Touhou Piano Pack
⠀Pike's 7K Piano Pack
⠀Falcom Game Music Piano Pack
⠀Pokemon Piano Pack
⠀[Full LN] 7K training
⠀Long Note Practice Pack

•[Forum] 7K 5 star unrated practice song recommendation

•[Forum] 7K LN Collection of loved songs worth playing + personally recommended songs

•[Forum] BMS Convert + Collection.db
⠀Converts
⠀Collection.db

•[Forum] CanMusic Converts
⠀Converts

•[Forum] O2Jam Converts
⠀Normal Server (Difficulty 20~77)
⠀Abnormal Server (Difficulty 78~170)

•[Forum] O2Jam Beginner Challenge Convert.
⠀Converts

•[Forum] O2JAM Interval Song Packs
⠀Converts

•[Forum] O2Jam Main Server Song Convert
⠀Converts

•[Forum] 7K Unranked Map Pack (7GB) [coro's 7k MEGAPACK Vol.1]
⠀Pack

•[Forum] 7K practice pack (14GB,10GB)
⠀7key practice 1 [14GB]
⠀7key practice 2 [10GB]

•[Forum] i found a pack link for ranked and loved mania maps

•[Forum] Finding a High-Difficulty 7K Maps
⠀109 Check favourite beatmaps

•[Forum] ItsRewindTime's Elite BMS Converts
⠀osu! Forum
⠀BMS Collection 1
⠀BMS Collection 1 Mirror
⠀BMS Collection 2
⠀Davteezy/Doorknob 1.1x-1.4x rate Bonus!
⠀Davteezy/Doorknob & underjoy Inverse Bonus!

•[Forum] Ranked Beatmap Pack 7K (12 Jan 2023)
⠀Pack 3.9GB

•[Forum] I'm sharing the beatmaps i use when practicing
⠀Davteezy/Doorknob BMS Converts
⠀Stella Converts 7k bms stella convert packs (1-10)

•[Forum] Insane BMS song recommendation 1
•[Forum] Insane BMS song recommendation 2

•[Forum] A Collection of Links to BMS Collections
⠀BMS Collection (KannaWana / Tachou)
⠀1⠀2⠀3⠀4⠀5⠀6⠀7⠀8⠀9⠀10⠀11⠀12⠀13

⠀BMS Charts(o2dasdas3232)
⠀1⠀2⠀3⠀4

⠀BMS Convert (stupud man)
⠀ 1⠀2⠀3⠀Bunch

⠀ A⠀B⠀C⠀Delay

⠀Get BMS Confined (PouletFurtif)
⠀ 1⠀2⠀3⠀4⠀Confined 1

⠀ 1⠀2⠀3⠀Confined 2