I have a winning no limit holdem friend who is playing low stakes online never studied with solver. I am looking to buy him a gift for starting to learn using solvers. I play plo and i have no touch with the no limit world. Is there any course which goes over spots and explaining how and why solvers are taking certain lines? Example 100bb big blind against button, solver choose to donk on 543 rainbow, i need the course to explain exactly wh

This will be a guide of how i will take over plo from the North. I will teach them a lesson what happens when they mess with the south