Hey, sorry about the late reply! I don’t have a dev blog, no – I mostly just post random Twitter updates, haha.
If I make another game I do want to share/document the development a bit more thoroughly, so I think a blog would be a good idea. 
Do you have a blog/website for your 3D stuff? I feel like MonoGame is mostly used for 2D stuff, so I’m really interested in what your project’s looking like!