Seconded for Fusion360. Lots of great guides online and an intuitive UI. I started using it when i got a CNC router and eventually transitioned to 3D printing.

Seconded for Fusion360. Lots of great guides online and an intuitive UI. I started using it when i got a CNC router and eventually transitioned to 3D printing. I did not have a modeling background and felt comfortable making things after about a month