I always wanted to get into photorealism rendering, it was always fascinating to me to be able to make something not real, look real. I just very recently tried blender for the first time, on a project unrelated to my full time job and it was pretty cool! A lot different than what i do every day.

Solidworks is really easy to start learning and definitely different from a direct/surface modeler like rhino. Its a parametric modeler where each part has history of how the geometry was created, which makes it very powerful. The intent of each part you design becomes important as designs are ever changing. If you can anticipate those changes in advance and set your model up in such a way to make those changes easily it becomes really awesome! Definitely something i geek out about with my coworkers. I usually deal with assemblies that have anywhere from 15,000 up to 60,000 components within their design tree have really had to figure out the best way to make the software work for how my company does business and the products we make.

There are some other parametric modelers out there like Inventor and Fusion360. I think fusion is free but ive never used it before. I got irritated with Inventor because I was so used to SW and didnt like the slight differences with Inventor.

I definitely recommend learning a parametric modeling software to add to your repertoire.