The Wikipedia article 'Nuclear Fusion' discusses various possible fusion reactions, the favorite is D + T, but D + 3He is also discussed, it does not compare well. I tried to reproduce the table but it does not come up well on this WA format, so you will have to refer to the article.
It seems Deuterium + Tritium is the only real candidate for serious experiment, and in view of the difficulty in getting even that established I should think any of the other possible reactions are out of the question, at least for now.
Helium 3 is stable. So no net energy is available from it. And there is not much of it at ground level, having been the decay product of hydrogen 3 (aka. tritium).
Right now, except for the Sun, fusion is not a viable source of energy. We do not expect commercial production from fusion energy for another 50 to 100 years, if then. The technological obstacles are presently insurmountable, primarily due to problems with containment, but we are working on them.
Wind, Solar and Hydroelectric are three.
Heavy water contains heavy hydrogen, i.e., deuterium. Once nuclear fusion is improved, it might become a viable energy source.
The reaction is neither stable enough nor controllable enough for it to be a viable method of production of energy for everyday use.
Not really at this time. Solar energy would be viable once fossil fuel energy source become possibly double (the cost) of what they are today. This sector is taking a gamble on new environmentally friendly philosophy that the world has recently embraced. Thus, would solar energy ever be economically viable? no doubts it will be just not at this time.
Wind is a viable source of renewable energy, but it may not be suitable for all locations due to varying wind speeds and availability. Additionally, wind turbines can have visual and noise impacts, and large-scale wind farms may face challenges related to land use and wildlife impacts. Technology and infrastructure costs are also considerations in making wind energy viable.
Nuclear energy, within the constraints of current technology, is the only viable and ecologically safe source of non-fossil power on the large scale.
Fusion reactors have not been developed and built yet because it is a complex and challenging process to control and sustain nuclear fusion reactions at a scale that is practical for energy production. Scientists are still working on overcoming technical and engineering obstacles to make fusion power a viable and reliable source of energy.
Tornadoes are not a viable or practical source of energy. They are highly unpredictable and dangerous natural phenomena, making it unsafe and unreliable to harness their power for energy generation. Additionally, the technology to efficiently and safely capture energy from tornadoes does not currently exist.
meat
Electricity is a viable source of heat element for cooking. When electrons are mixed with energy, they create friction hence heat to cook with.