A fusion plant would be the same steam generator. The engineering is mature, and it's the most efficient way to turn hot into electricity. The D+T fusion reaction produced puts 80% of its energy into a neuron and 20% into a helium. Both will strike the wall of the chamber and that will heat the chamber. Cooling channels running through the wall carry the heat to a heat exchanger which makes steam for the turbine. Any other mechanism would be less efficient than steam generator.

There are the p+Boron 11 schemes that produce energetic charged particles (no neutrons), which could be, magnetically funneled into collectors to create a very high voltage DC current, however the physics challenges with that fusion reaction are higher.