Publicly Owned Football Clubs

There still exists a few successfully ran publicly owned Football Clubs

The following clubs are publicly owned:
In Spain, Real Madrid, FC Barcelona, Athletic de Bilbao, Osasuna.

In Italy Juventus, Roma and Lazio are publicly owned. In Juventus’ case it is owned by a publicly traded company.

In Premier League, I know Arsenal and Tottenham are publicly owned. There might be a few others but I only know of these two for sure.

Also by direct league mandate all German Bundesliga teams are at least 51% publicly owned.

Real Madrid, Manchester United and Arsenal are the 3 most valuable clubs in the world according to Forbes. This means that 2 of the top 3 clubs are Publicly owned.

Check this article about Strategy and the FC Barcelona Model, it discusses the 4 main models of Football Club Ownership.
David Bruce Allen article on Barcelonahtml

Interestingly enough, out of all the football clubs in the world, Barcelona has the most "socios" (owners) followed by Bayern Munich.
Sport article on Barcelona

Here's another article about the Role of Public Sports Associations in Society. It's pretty interesting.
Role of Sports Associations