ethereum, bitcoin, litecoin, BTG. very nice coins for use in long-term investments and have a brighter future than the other. for one to four years is perfect invest in coins.
I agree with the fact that BTC, LTC and ETH are excellent long-term coins. But I can't understand what attracts you to BTG? I don't see any great opportunities here. It's better to buy NEO and NEM instead of BTG.