Pennywise is a cool new app to open a webpage in a floating, always on-top, window. Check it out at https://github.com/kamranahmedse/pennywise or https://www.producthunt.com/posts/pennywise
This workflow will open the current active tab (from both Chrome or Safari) in Pennywise. Use the shortcode:
pw
Get it from: http://www.packal.org/workflow/open-active-tab-pennywise
Yes, the app icon is a bit scary. They say that they are changing that soon