and have a clear access to it like on Metamask.
What are some other similar projects to MetaMask and just as good?
I don't know of any alternative to Metamask in the Ethereum ecosystem. You need to understand that any software wallet is not safe from viruses and hacker attacks.
Therefore, I highly recommend using a hardware wallet through the Metamask interface.
Metamask is compatible with Ledger, Trezor and other well-known hardware wallets.