It's important to remember that investing in cryptocurrencies, especially in meme coins, carries a high level of risk. Their value is highly volatile and can fluctuate wildly in a short amount of time. Therefore, it's crucial to conduct thorough research before investing in any coin.

That being said, some of the most popular meme coins at the moment include Dogecoin, Shiba Inu, and SafeMoon. However, it's important to note that these coins have faced criticism and controversy due to their lack of utility and potential for pump-and-dump schemes.

As for limited supply coins, Bitcoin remains the most popular with a maximum supply of 21 million. Other coins with limited supplies include Litecoin, Binance Coin, and Cardano.

Ultimately, the decision to invest in any coin should be based on your own research and risk tolerance. It's important to consider factors such as the coin's purpose, development team, community, and potential for growth before making any investment decisions