Good Luck.
I like both JOBY and ACHR for different reasons. They have some differences when you compare their products against each other and there is also a difference in their approach to marketing them. For now I trade them both. I may continue that or gravitate to one as they each move forward. One can find good info on the Net comparing them with each other. Rotor drives, batteries, speed, distance, payload, passengers etc. Check out their partners, funding, financials etc. Plenty of ups and downs over next year or two to trade for free shares IMO. One notable is that JOBY has achieved flight certification while ACHR is not there yet.