Setup a MetaMask wallet. That's it! You don't even have to fund it in order to authenticate on web3 applications. MetaMask will allow you to authenticate on all

Setup a MetaMask wallet. That's it! You don't even have to fund it in order to authenticate on web3 applications. MetaMask will allow you to authenticate on all the different chains that have EVM-based dapps including Ethereum, Fantom, Avalanche, & Moonriver Polkadot.js for Kusama and Polkadot apps. You can also check out Fearless wallet on mobile for Polkadot & Kusama where you can participate in the ongoing parachain auctiona. Use the Phantom extension to authenticate on Solana dapps. Hope you have fun!