How can I get all the fields of an Instance?

There’s a few resources that used to keep track of all classes and their members:
https://anaminus.github.io/rbx/json/api/latest.json

Both of these however are outdated and no longer maintained. I tried using the ReflectionMetadata.xml in my Studio directory, but it also seems to be missing a lot of fields (one example being FrontParamA of BasePart).

Where can I (manually) get such a list that is actually up to date and complete?

Reclass uses Roblox Client Tracker