I do not know is this the best way to earn money. Station mining rush missions is the way that I earned money before I got the hyperion with 8A warp drive and 25 jump range modifications.
When I got the hyperion with 8A warp drive and 25 jump range modifications. I traded slaves to earn money. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Kpyh89Xfw0A.html In this video, you can see I earned over 30 millions credits in 13 minutes by slave tradings.