Question Best way to handle large collections of strings to Json

For my current project, one of the main goals is to have a large amount of generated data which is outputted at the end of the model. A lot of this will be as long strings of generated text

I am expecting to end up with 1000s of data entries which will primarily be made up of strings. Currently I am storing them as collections of structs and outputting them to json at model finish, but this has just been for testing purposes and I am aware that this will likely lead to performance issues down the line due to the garbage collector going through a large quantity of strings

What is a better way of doing this?

 

I wouldn't be so quick to assume. My KurtMaster2D game collection uses a 2048-byte string buffer to communicate back and forth between native mode and Unity mode, filling that buffer EVERY FRAME with fresh data, data which is then torn apart into dozens or even hundreds of smaller sub-strings (every frame!) and it never stumbles.