There are not many Bitcoin exchanges in Annaba, Algeria due to the limited adoption of cryptocurrencies in the country. However, here are some of the top Bitcoin exchanges that are available in Annaba:

1. LocalBitcoins: LocalBitcoins is a peer-to-peer Bitcoin exchange platform that allows users to buy and sell Bitcoins directly with each other. Users can choose their preferred payment method and meet in person to complete the transaction.

2. Paxful: Paxful is another peer-to-peer Bitcoin exchange platform that connects buyers and sellers from around the world. Users can trade Bitcoins using various payment methods, including bank transfers, PayPal, and gift cards.

3. Binance: Binance is one of the largest cryptocurrency exchanges in the world, offering a wide range of trading pairs and low trading fees. Users in Annaba can buy Bitcoin on Binance by depositing funds using a bank transfer or credit card.

4. Bitstamp: Bitstamp is a popular European cryptocurrency exchange that allows users to trade Bitcoin and other cryptocurrencies. Users can deposit funds using a bank transfer and buy Bitcoin at competitive rates.

5. Coinmama: Coinmama is a cryptocurrency brokerage platform that allows users to buy Bitcoin and other cryptocurrencies using a credit card or bank transfer. Users in Annaba can easily purchase Bitcoin on Coinmama and have it sent directly to their wallet.

6. Kraken: Kraken is a well-established cryptocurrency exchange that offers a wide range of trading pairs and advanced trading features. Users in Annaba can buy Bitcoin on Kraken by depositing funds using a bank transfer or cryptocurrency.

7. Bitit: Bitit is a cryptocurrency exchange platform that allows users to buy Bitcoin and other cryptocurrencies using a credit card or bank transfer. Users in Annaba can easily purchase Bitcoin on Bitit and store it in their own wallet.

8. CEX.IO: CEX.IO is a cryptocurrency exchange platform that allows users to buy and sell Bitcoin and other cryptocurrencies using a credit card or bank transfer. Users in Annaba can easily purchase Bitcoin on CEX.IO and trade it on the platform.

9. Coinhouse: Coinhouse is a cryptocurrency brokerage platform that offers a wide range of cryptocurrencies for purchase. Users in Annaba can buy Bitcoin on Coinhouse using a credit card or bank transfer and have it sent directly to their wallet.

10. Coinbase: Coinbase is a popular cryptocurrency exchange platform that allows users to buy, sell, and store Bitcoin and other cryptocurrencies. Users in Annaba can easily purchase Bitcoin on Coinbase using a bank transfer or credit card.

Overall, while the options for Bitcoin exchanges in Annaba, Algeria are limited, there are still several reputable platforms available for users to buy and sell Bitcoin. It is important for users to do their own research and choose a platform that best meets their needs and preferences.