I stumbled on this interesting article. Hydrogen Boron fusion is something I've not heard of before: https://phys.org/news/2017-12-laser-driven-technique-fusion.html
Hydrogen-boron fusion produces no neutrons and, therefore, no radioactivity in its primary reaction. And unlike most other sources of power production - like coal, gas and nuclear, which rely on heating liquids like water to drive turbines - the energy generated by hydrogen-boron fusion converts directly into electricity. But the downside has always been that this needs much higher temperatures and densities - almost 3 billion degrees Celsius, or 200 times hotter than the core of the Sun.