Cronwell? Yes, I’m a fan because he was Britain’s first and only Republican.
Define Republican, because that can mean a whole number of things. After all, technically, Robespierre and Lenin would be Republicans due to founding the French Republic and the USSR, which stands for the Union of Soviet Socialist Republics, yet neither of them were actually good people at all. Same goes for the Spanish Republicans during the Spanish Civil War. Though even Cromwell was a far better man than Lenin and Robespierre, not to mention the Spanish Republicans, since at least HE tried to retain his religion rather than gut it altogether in the name of atheism like they did.
Besides, as the link I provided earlier indicated, Cromwell and the Glorious Revolution weren’t exactly all that good of events (barely being much better than the French Revolution or various Communist revolutions).