Where' can I find all methods?
I.E the method for finding connected players,

players.FindPlayer();
​

Where' can I find mentions of theses methods, I tried looking in the Docs,API-Docs and only found Hooks, and basic methods.
How would a person go about learning OxideModding?

The best way to find out about all the methods and such is to use a decompiler to look at the server source code.

To answer your other question, the best way to find all the online players is BasePlayer.activePlayerList.

Is Oxide not well documented?

There's some basic documentation here: https://umod.org/documentation/api/overview
We're in the process of improving our documentation, but those improvements do not include documenting the game code; you'll have to use a decompiler for that.

Bugle

Is Oxide not well documented?

Merged post

You would think a fork that handles thousands of modded server's would have a well documented api.

Oxide is your talking game code.