Which software do you use to draw DXF files?

A non-exhaustive list is available here:

https://en.wikipedia.org/wiki/List_of_CAx_companies

If you do not already have a favourite software we recommend using the 2D CAD solutions that are Open Source (for free):

QCAD can be downloaded here

LibreCAD can be downloaded here

They have extensive documentation on YouTube here and here.