Here are three top cryptocurrencies to consider before Bitcoin halving for potential 10x returns:

1. Ethereum (ETH): The second-largest cryptocurrency may benefit greatly from the halving cycle. It could break its price barrier and establish a new all-time high.

2. Solana (SOL): Solana has been a popular crypto token recently. It reached a high of $200 in March and is expected to gain momentum after halving.

3. Binance Coin (BNB): BNB is one of the top cryptocurrencies by market cap and has seen a steady market pace. It is expected to experience positive price growth after the halving event.

Keep an eye on these coins for potential significant gains in the cryptocurrency market post-halving. Remember, always conduct your research and seek advice from a financial advisor before investing.