3 hits hard. Just not sure what would be sought after and not saturated
The best 3 ways to earn sats;
1) This website:
freebitco.in/?r=12881435&tag=Nostronaut
2) Bitcoin Mining:
http://miningsyndicate.refr.cc/Nostronaut
3) Selling a digital product or service for bitcoin
Discussion
Get creative.
Options are limitless...
You can earn sats by using a LN paywall on just about any content you can think of!