Hi BG welcome to MoI and to the forum!

For tutorials to start with I'd recommend reading the introductory section of the help file:
https://moi3d.com/4.0/docs/moi_introduction.htm

And there are also some video tutorials in the help file as well:
http://moi3d.com/4.0/docs/tutorials.htm

2D shop drawings can be done in MoI by placing in dimensions and then saving to a 2D file format like PDF, AI, or (in v5) SVG. It works well for fairly light duty drawings, if you need to produce detailed drawings you would probably need to do that elsewhere.

Alibre is a good choice for inexpensive parametric CAD.

Whether any of this is a perfect fit for you depends a lot on the specific kind of work you want to do.

If you want to make things like signage with embossing or relief type raised imagery on it then that's difficult to do in CAD and instead a "2.5D" ArtCAM like package could be better.

Since Autodesk purchased and then discontinued ArtCAM you might checkout something from Vectric instead, or
maybe this one which I guess is derived from ArtCAM:
https://fts.gr/carveco/

- Michael