Like other said there is no way to send BTC to Metamask unless you talking about Binance-wrapped BTC or BBTC that support the ERC20 network.

What exactly do you plan why do you want to use Metamask to store your BTC?

Are you planning to withdraw BTC from Binance and you see other networks like Bep20, bep2, and ERC20? Once you withdraw them to metamask you won't be able to recover them. Better find the right wallet to receive BTC just like what they suggested above but if your purpose is to reduce fees you can only use other networks when you need to transfer it to another exchange that supports that network.