Where you are sitting. There are many CAD (Computer Aided Design) programs available at no charge. Some are demos and or limited. Some are full blown such as KiCad.
I have used KiCad for the last several years and I like the output. It is not the easiest but it will do what you want in as many layers as you like (50 max I think). There are many tutorials on line, check some of them out. One of the great things but a pain the first time is the foot print is not defined with the part, This allows me to use whatever part I want on the schematic then pick the footprint when laying out. I have taken through hole designs and gone to SMD by simply changing the footprint and redoing the layout.