I realize that Bitcoin is rising again. The present moment is not suitable for buying more, but to keep the BTC you have and wait for it to increase.
I bet on the new promising cheap altcoins. I suppose if you invest in them, the return will be great. My favorites are Credits, Napoleon X, Gladius token, and EIDOO.
Most especially since a whole lot of them are trading far below ICO prices now and that makes it like a great offer for those who would believe in the long term of the project to pick them up at these stages before the market starts showing some great bounce.
Altcoins though at this stage are really doing badly considering how the general market is extremely bearish and more attention should be focused on bitcoin's movement to be able to play the market to one's advantage. So far, I feel like the altcoins are all ready to start bouncing, but bitcoin just keep supressing them anyway.
To me I personally will suggest you bitcoin, I think that in current time bitcoin is the best option for trading. In fact bitcoin price is currently trading in a low price and I do not think that it is going to dump any more, therefore I think that in current time bitcoin investment can be consider ad good and secure investment.