I write a newsletter called The Dominion. I publish on it semi-regularly, and the newsletter focuses primarily on Canadian politics and Canadian conservatism especially. I generally publish longer and more thoughtful essays in the newsletter and save column writing for elsewhere. You can sign up for free here and take a look at some of the older essays. Much of my thinking on Canadian conservatism is published in The Dominion: 

The Dominion: a newsletter by Ben Woodfinden