With Bitcoin (BTC) surging and the market exhibiting greed according to the Fear and Greed Index, it’s an opportune time to consider diversifying your portfolio with altcoin investments. While meme coins often attract attention, focusing on established, solid projects and promising presale tokens could be a prudent strategy. Here are some top altcoins and a presale token worth exploring. Bitcoin (BTC) Bitcoin is currently trading at $66,000.