As the title suggests, this query will find all users for a tag and city and lists them on bases of their rank.
Q&A for users and developers of distributed applications built on top of the blockchain operating system, EOS.IO
-- Find all the top users for a tag and location select distinct TOP(250) Users.Id [User Link], Users.Reputation from Users join Posts on Posts.OwnerUserId = Users.Id where Users.Location like '%##Location##%' and Posts.Tags like '%##Tags##%' order by Users.Reputation desc