Meme coins like Dogecoin, Shiba Inu, and BTFD Coin are making waves in the cryptosphere.BTFD Coin's presale is ending, offering a potential 3,650% ROI and a limited-time bonus.Dogecoin, with a market cap of $38.9 billion, remains a popular choice for investors.Shiba Inu, known as the 'Dogecoin Killer,' has a market cap of $9.6 billion and a trading volume of $269 million.