If we see the market, we know that only very few coins like bitcoin and ethereum are increasing. Besides few coins are increasing a little. Many coins still are not going so high so that we can trade few coins like xrp, bitcoincash, litecoin etc. We can invest these coins or many coins.
Not all altcoins have chance to increase in price, XRP have current problems with SEC and needs to address plenty of issues at these time so better stay away with it in the mean time and focus on coins that have active trading volume, entering in Bitcoin and ethereum at these higher rate is risky but others were able to enter in between the sudden drop and ride when the price increase since they closely study and monitor the market throughly. If prefer to buy other altcoins jwhich is also having profit now better check the status and updates of the altcoin for a chance to ride in its pump since not all altcoins even listed in top of coinmarketcap will be able to join the after ATH hype effect hype for altcoins.