ive seen on a few servers where if you type /top10 you see a list of Top 10 stats in chat. example

1. Longest Kill: "Name" 200m
2. Animals Farmed: "Name" 102
3. Longest... 
4. Most ...

but i cant find the plugin, i dont wish to use PlayerRanks for the UI Ranks / Titles

Is this the one you are looking for?  https://umod.org/plugins/player-challenges