Bitcoin is the only one that will stick around for a long time IMO. It's been around for nearly a decade now, and yes it's finally becoming more mainstream(becoming a fad) but I think that will only help it grow. I bet BTC will hit 10k before the bubble starts to burst and it balances out in a few weeks. There is a Hard Fork happening around the 16th of this month and that's when a lot of people are planning to sell. I think after all is said and done it will be around 5k