

You say “best”, “highest performing” etc, but we asked a panel of immorally wealthy, elderly white male sex offenders who their ideal upper management employee was - and they unanimously suggested other immorally wealthy, elderly white male sex offenders, and suggested that employing anyone else is a DEI hire.
I think everyone’s got the CAD/3D programs covered, so a slightly “out there” answer:
If you’re just doing 2D blueprints for yourself, do you actually just need a 2D vector program for doing a scale drawing with measurements?
I’ve done a lot of floorplans / layouts/ site maps etc using Inkscape, for instance.
It depends on exactly what you’re wanting out the other end - so you may be lacking a lot of the features in a full CAD program, but the learning curve is comparatively so shallow that you might have a working plan by the end of the day, rather than the end of the month.