Quickest way to search a ton of files / databases?

[Ernestbok]

Hey, I've collected and parsed databases on my PC over the past 4 years, I was wondering what tools and programs you guys all use to search through them locally?
I have several thousand files to search through, unfortunately standard commands are way too slow to check through them all recursively! They are all currently stored as JSON, I've been recommended to load them into a local SQL database and search them that way, but I was wondering what you all think is the best tool to do this before I end up doing something wrong...
Thanks!

 

[eszyl]

big leak

 

[SadBoy6x3]

wow bro

 

[Ronald Walken]

thanks man!

 

[Lings]

thank you so much

 

[GOLDENHOUSE]

Great job.

 

[Tyler James]

nice leak

 

[lenec]

best user

 

[deteyo]

Thank you sir!

 

[corplete90]

thanks man!