You can use a Gnosis Safe to vote, create a proposal or setup a space on Snapshot. To do so you can login to Snapshot from Gnosis Safe UI by adding https://snapshot.org as a Safe app. When you will try an action like vote, it will create a pending transaction in your Safe transactions queue. This transaction must be confirmed by the Safe signers within 6 hours. Once the transaction is confirmed the vote will be sent and will appear on the proposal. Only mainnet is supported at the moment.