I don't know if this can be something you can add via guildwork? but I'll suggest it anyway since the developers don't understand how good this would be in the game.
On the game there is now something called Mastery Rank, this is a 1-8? number based on titles and many other things that is very hard to cap out. For anyone that has played Warframe it's like that, but not public (although it can be displayed when a player types in mentor chat).
The number is shown on the status/profile page.
Could there be a page on the site that mines these numbers from players characters and displays top 5 per server or something maybe?
https://www.bg-wiki.com/ffxi/Mastery_Rank