Binance, like other cryptocurrency exchanges, offers a trading platform for users to buy and sell cryptocurrencies. However, when you buy cryptocurrencies on an exchange, the exchange holds the assets in its custody until you withdraw them to your own wallet.

A best crypto wallet is a secure digital wallet that allows you to store, manage, and transfer your cryptocurrencies. By having your own crypto wallet, you have complete control over your assets and can move them in and out of the exchange as you wish. This also means that you are not dependent on the exchange's security measures to protect your assets.

In addition, some cryptocurrencies may not be supported on the exchange's platform directly. In these cases, you would need a wallet that supports the specific cryptocurrency you want to hold or trade.

Having a crypto wallet is an important part of managing your cryptocurrency investments, and it is recommended that you have a wallet outside of any exchanges where you hold your assets.

There are several crypto wallets that are compatible with Binance, but the best one will depend on your specific needs and preferences. 

Here are some popular options:

Binance Chain Wallet: 

This is the official wallet provided by Binance for its users. It supports Binance Chain and BEP-20 tokens and is available as a browser extension for Chrome, Firefox, and Brave.

Trust Wallet: 

Trust Wallet is a popular mobile wallet that supports Binance Chain and BEP-20 tokens. It is available for both iOS and Android devices and allows you to store, send, and receive cryptocurrencies.

Ledger Nano S/X: 

If you're looking for a hardware wallet, Ledger Nano S/X is a good option. It supports multiple cryptocurrencies, including those on Binance Chain, and offers a high level of security.

D-Wallet: 

Dwallet is a non-custodial crypto wallet for desktop and mobile wallet that supports over 200 cryptocurrencies, including Binance Chain and BEP-20 tokens. It also offers a built-in exchange and supports staking and trading.

MyEtherWallet: 

MyEtherWallet (MEW) is a popular Ethereum wallet that also supports Binance Chain and BEP-20 tokens. It is a non-custodial wallet that allows you to store and manage your crypto assets securely.

It's crucial to conduct your own study and select a wallet that matches your unique requirements and preferences. When choosing a wallet, consider factors such as security, ease of use, and the types of cryptocurrencies it supports.