What alternative to slavery do you think the colonists could have used to solve the labor shortage (consider how they could have had a healthy economy without slave labor)?

Answered twice here already, see if you can make your own answer with the two:

They could have had others do the work, providing breaks and pay if asked and if they can, or they could have done it themselves.

They could've done the work themselves and they still would've had a healthy economy, suppose a farmer had to harvest crops, he could harvest his crops and sell it in the market to make money.

Explanation: Tried to answer as best as I could, hope it helps!

the ones that are losing there jobs