Looking to find good drafting program or course online...

I'm wanting to take my chicken-scratch-style designs to the next level. Does anyone know of any good online courses to learn drafting for landscape design? Or can you recommend any programs that you use for rendering more professional designs? Any help is appreciated. Thanks!
Kim

Hi Kim,

I followed this https://permies.com/t/35897/Tutorials-permaculture-design-free-software for inkscape, I've got about 10 hours on it and I like it!