Any recommendations for what coins to stake that have a decent reward with low to moderate risk?

I will just provide you with tools to use and to determine which coins is more profitable. As for the part of risk, you may have to do some due diligience
- https://www.stakingrewards.com/calculator
- https://www.cointostake.com

I'm staking on desktop Wallet QT and can you tell me more about of this risk, What do you mean?
Can i lose coins?