please give examples

I am not sure if this kind of post is allowed but I need some help.

I have been searching for 'these terms' for months now and couldn't find it on any site or trackers

NFO Rippers found on learnbits

Password managers

2FA Code

User extensions like User-Agent Switcher

Multi-factor authenticator-- MFA

Audiophiles found on audionews

Account collectors

Bulk Download

PID system

and what`s anti leech tracker?