I’m curious about what you @alwaysblank would use to fiddle with routing and templates? 
I tried Cortex but couldn’t get it to be displayed through Blade in the latest Sage9 (cf: Sage9 template & wrapper ) despite Ben’s kind sharing of the book example on how to render from php. I also tried with rareloop/wp-router but seems out of date as well and has been integrated into their Lumbersjack.
What would be the best way to have some custom routing for Wordpress?