Software or hardware
A software wallet is an app or a browser extension, free, with the key stored on the phone or computer it runs on. MetaMask and Trust Wallet are examples of the kind. They’re the right tool for small balances and everyday use, and the wrong place for savings.
A hardware wallet is a small device that keeps the key inside it and signs on its own screen. Ledger and Trezor are examples of the kind, and this course uses their names because their guides were checked for it. The plain models cost least and the touchscreen models most, and any of them does the job this course describes.
We don’t rank makers, and a ranking would be stale by the time you read it.
Choose a maker that has sold devices for years, publishes its own setup guides, and answers its own customers. Then buy from that maker, on its own site. Where you buy matters more than which you buy, and the next section says why.