Unless you own a fleet carrier that can bring you out into the void rather quickly, that would mean you'll be more or less confined to the realms of man and its direct perimeter. Which isn't bad at all, as it can help you to accomodate yourself to the basics of exobiology without the risks involved with long travels out there.This weekend will mostly be scanning salad.
I just want the money. Any tips appreciated, for this is my first foray into the wonderful world of exobiology. I undertake to post no pictures of CMDRs standing in front of things.
If you scan something that has already been scanned by someone else, you still get the base value of it. Which still is between 1 and just shy of 20 million credits per species.
If you want to look into third party tools to help you on your endeavour, I'd like to recommend EDCopilot. It helps you keeping track of which bio you had started scanning in the previous session (in case you have to have to quit the game amidst collecting those three samples). It not only tells you how far you have to move for the next sample after scanning one, but keeps track on your distance and tells you when you have left the species' bidiversitiy perimeter. And it will also tell you the base value of that species on the first scan. Said first scan can also be a scan with the CompScanner of your ship / SRV.