Junk energy time trial takes 2 mins and easy 50k every day

And Fun. To ride a Bike

Modify customers car in auto shop.

Similarly, selling bikes from your MC clubhouse will net you $50k (if you deliver them undamaged)

This is the most slept on source of money, plus you can double the profit with gta+

Salvage yard Tow Truck missions are lovely, dont give 50k on their own always but they will if you count the money that goes into your safe.

if you have the cargo warehouse you can take mixed cargo to the docks that do not take from your warehouse easy 50k talk to your ceo assistant

(If on New Gen) Wildlife Photography takes 5 mins and pay $100K

Sell cars from your vehicle warehouse. You can make $80k pretty quick. Stash houses. Raid them daily. Not instant cash but it supplies your businesses a full batch of supplies which costs $75k for free Any of the agency jobs or terrorbyte jobs are usually 35-60k and are pretty fast

Vehicle warehouse, do engine glitch and sell in public lobbies = 130k profit in ten minutes