I need advice for object-oriented data analysis. I have exported a collection of users from Firebase to JSON, and I want to analyze it, for example, how many users are females, males, etc. Are there any tools or packages that could help me quickly analyze this data?
You could check out MongoDB Atlas Data lake: https://www.mongodb.com/blog/post/mongodb-atlas-data-lake-now-generally-available
It can allow you to upload the json file into Atlas and then you can run queries on it using the MongoDB Query Language.
Excel would be a go to choice. You can do all sort (mostly) of analysis on data easily. (unless you've nested array). Apply pivots, infer tables, generate graphs.
If the data size is huge, you can also try MySQL and do queries in traditional manner.