The PCB tutorials by Chuck Adams(K7QO) on YT are pretty good and go over a unique PCB style that he calls MUPPET. Zero thru-hole mounting, but uses thru-hole parts (and SMD sometimes). His tutorials also go over creating the print transfer using a small lamination machine rather than a hot clothes iron. I recommend checking out the series.

https://www.youtube.com/watch?v=O6AmT1trO60