How to determine if a mod has been made yet

[Judge_]

Hi so Im new here so sorry if im posting this in the wrong spot or something because i did previously post this somewhere else. Im trying to figure out if a mod has already been made or not without saying what it is. Essentially the mod would add a new victory condition to the game that could be playable in conjunction with already existing victory conditions. Is there a specific place i can check for already made mods that deal with victory condition specifically? thanks for any help

Moderator Action: Moved to the main forum.
Because the tutorials subforums is only for tutorials, not for questions .