I think a coin that wastes so much ressources as Bitcoin doesn't deserve to have a future. I'd prefer coins that don't waste so much money on hardware and electricity. Currently the Bitcoin network consumes the same amount of electricity that croatia consumes.
It is your choice dude. If you want, you can support Ethereum or Bitcoin Gold. But I am afraid that these coins will never be able to beat Bitcoin in terms of popularity and adoption. And BTW, what is wrong if Bitcoin mining requires a lot of electricity and expensive rigs? Mining rig manufacturing is a big business now and is employing thousands of people.