Bitcoin is always a good way to invest your money, especially if you go for the long game. Also, other alt coins like ETH, Monero, Waves etc. have great value already and it will increase in the future but you can get in the trading game with them and make quick profits.
But now the bitcoin price is very high not everyone can afford this price, so the high potential altcoins are best to invest your money in long term. I am invested in waves and eth.
No other coin is so impressive and promising and all the price that is gone up it is just because that bitcoin is now valid all across the world and invest into it at this time will bring a lot of profit in future dont go toward other coins because they are still unknown to the world and no one is accepting them so go for the best option and that is bitcoin dont see the price just invest into it for good profit.