I suggest litecoin to you, I think in the next few weeks, it has a lot of potential to go up in price. Next is ethereum who took a big decrease but investing in it now is quite risky considering that the last insane pump that happened is because of successful ICO's running in eth. I think it will go down more but it might recover so better secure a position now. Lastly, look at top coins who took some dump going the same direction as btc chart.