I could spend all day on training tips for Frenchies. The one trick I will share is our water gun. We use it when one of the puppies is misbehaving. We use it to get their attention when they aren’t close. It distracts their minds from what they were doing, long enough to hear your command. Of course every now and then, you get a water eater that loves water and you have to try something else.
The main thing is just like your children, repetition, praise and love goes a long ways.