As of 2024, the top cryptocurrencies in the UAE city of Sharjah are likely to be determined by a variety of factors such as market capitalization, adoption rate, regulatory environment, and overall popularity. While it is difficult to predict the exact ranking, some of the top cryptocurrencies in Sharjah could include:

1. Bitcoin (BTC): As the original and most widely known cryptocurrency, Bitcoin is likely to remain a dominant player in the market. Its decentralized nature and limited supply make it a popular choice for investors looking for a store of value.

2. Ethereum (ETH): As the second-largest cryptocurrency by market capitalization, Ethereum is known for its smart contract functionality and decentralized applications. With the recent upgrade to Ethereum 2.0, the platform is expected to become more scalable and secure, further increasing its popularity.

3. Binance Coin (BNB): Binance Coin is the native cryptocurrency of the Binance exchange, one of the largest and most popular cryptocurrency exchanges in the world. BNB is used for trading fees, token sales, and other activities on the Binance platform, making it a valuable asset for users.

4. Cardano (ADA): Cardano is a blockchain platform that aims to provide a more secure and scalable infrastructure for decentralized applications and smart contracts. With a strong development team and growing community, Cardano is considered a promising project in the cryptocurrency space.

5. Solana (SOL): Solana is a high-performance blockchain platform that has gained popularity for its fast transaction speeds and low fees. As decentralized finance (DeFi) continues to grow in popularity, platforms like Solana are likely to see increased adoption in Sharjah.

6. Polkadot (DOT): Polkadot is a multi-chain blockchain platform that allows different blockchains to transfer messages and value in a secure and trust-free fashion. With a focus on interoperability and scalability, Polkadot is well-positioned to attract users and developers in Sharjah.

7. Ripple (XRP): Ripple is a digital payment protocol that is designed to enable fast and low-cost cross-border transactions. With partnerships with major financial institutions around the world, Ripple is a popular choice for users looking to transfer money internationally.

It is important to note that the cryptocurrency market is highly volatile and subject to rapid changes. Investors in Sharjah should conduct their own research and consider their risk tolerance before investing in any cryptocurrency.