Instructions:
1. In Metamask, click on your account then click “Settings”
2. Scroll down and clock on “Networks”

3. Click on “Add Network”
MATIC Network Metamask RPC Info
Fantom Opera Network Metamask RPC Info
Binance SmartChain Network Metamask RPC Info
IF YOU NEED OTHER CHAINS:
1. go to https://chainlist.org/
2. connect your metamask wallet (top right)
3. search for the chain you want to add
4. click on Add to Metamask