What classification of motorcycles are these?

With retro motorcycles being all the rage, I feel like WW2 motorcycles capture that spirit the best. With that said, I dont know what to call them because of you say retro people automatically think of cafe racers, scramblers, bobbers and brats.

Im refereing to the setup of ww2 motorcycles where the wheels are even, the body is a teardrop tank and the handlebar is like a long u shaped kind.

Im not really knowledgable on motorcycles so apologies for any errors.