Built-In String Methods: Overview – Real Python

Manipulating Strings With String Methods – Real Python

How to Use Python String Methods

Python: Find an Index (or all) of a Substring in a String • datagy

Lexicographical Maximum substring of string - GeeksforGeeks

String Slicing – Real Python

Guide to String Formatting in Python Using F-strings | Built In

Python f-strings: Everything you need to know! • datagy

Python F-string Formatting