GitHub - KumosLab/Discord-Levels-Bot: A Modern & Advanced Discord Levelling Bot that is easily customisable to your liking and includes Rank Cards, Addons and a lot more!
Miki - The Discord bot!
Discord.py: Making a Discord bot (Part 15: Level System) - YouTube
Getting Started | Tatsu Wiki | Fandom
Snippet: Discord Level System Rank Personal | Steve - Autocode
C# Discord Bot: Logging All The Things — The Ginger Ninja