There is no proper leaderboard in Briq with a ranking of all the users according to their number of collected Briqs. It's a choice we made in order to protect the employees and to avoid any stigmatisation regarding their usage of Briq.
However, if you are using Briq with slack, you can activate a "leaderboard" feature to display the 5 persons who gave and received the most of briqs during the last 30 days.
To activate the feature, just check the box "Have a leaderboard accessible via the /briq command in Slack." in your organisation parameters. Then, when typing /briq in slack, your can access this leaderboard by clicking on Get insights > Leaderboard.