Just wait. All of the coins will be cheaper. The bubble just popped, we've just entered in a long-term bear market.
Can you provide any solid proof to explain this? or are you just speculating or spreading false information.
To the OP, if you have missed any coins which you always wanted to get into then now is the right time to invest and get hold of those at a low price. The price might go further down or bounce back up we never know. Just follow your guts and invest what you can afford to loose so you won't regret it later. And avoid listening to shit posters on the forum.
If I had some spare cash I would go for NEO, IOTA, REQ apart from the top ones as I feel they are worth for the long term investment with real world usage. Also try for coins <$1 value, so if at all it shoots up you will have massive gains. Again choosing the right coins differs from person to person. Just go through the whitepaper of respective coins to learn its tech and decide yourself. Diversify your portfolio so if ones goes down for whatever reason there will be others as a backup.