>>23421258
No specific source, I just downloaded some from when the link was still active, download from multiple sites I find when searching from the OST or rip them myself occasionally sometimes although that's rarely. I don't have everything sorry, here's all I have:
Kyoryuger: https://gofile.io/d/6cEpkU, https://gofile.io/d/qiiXqM
Super Sentai Themes: https://gofile.io/d/59rZsz
Zyohger: https://gofile.io/d/Pd7HaF, https://gofile.io/d/coTqgv
Zenkaiger: https://gofile.io/d/d0S48q
King-Ohger: https://gofile.io/d/kHMj8B
Kyuranger: https://gofile.io/d/Firuq9
Dekaranger: https://gofile.io/d/8GXViP, https://gofile.io/d/eTekN7
Timeranger: https://gofile.io/d/mIsGoV
Shinkenger: https://gofile.io/d/277lGy
Gozyuger: https://gofile.io/d/IJ69Fv, https://gofile.io/d/VGwoj2
Hurricaneger: https://gofile.io/d/j3it39
ToQger: https://gofile.io/d/TZYI0v
Kiramager: https://gofile.io/d/G2Y3Ju
GoGoFive: https://gofile.io/d/7SXq5T
Magiranger: https://gofile.io/d/XyjtAZ
Gokaiger/Gaoranger: https://gofile.io/d/y8d6bk
LuPat: https://gofile.io/d/Vjlykp
Go-Onger: https://gofile.io/d/FYCcqn
Denziman: https://gofile.io/d/TvA72H
Boonboomger: https://gofile.io/d/2sJrex
Abaranger: https://gofile.io/d/PqH8oF
Donbrothers: https://gofile.io/d/vJ7qPG, https://gofile.io/d/P9VszC
Boukenger: https://gofile.io/d/EN71bB
Carranger: https://gofile.io/d/JZiuK3
Maskman: https://gofile.io/d/INfXWu
Changeman: https://gofile.io/d/LyJCff
Battle Fever J: https://gofile.io/d/9r8Lu3

I don't know if anon with either a mega or drive could make a replacement for the OP's link with my files