You would need a database to store all those data. AWS DynamoDB is one of the solution we used for one of our games. Its an object oriented database so its the best solution for what you just mentioned. SQL on the other hand needs to be tables with variables, you may end up having to make multiple tables with relations. Our solution was a mix of both using APIs to communicate between AWS DynamoDB and MsSQL. oh and DynamoDB is way faster than SQL if setup properly.
here is a plugin you can use for that. its a bit pricy but worth every penny if you are looking to patch things up quickly