Monero is a private digital currency. It is an open-source protocol. Monero uses an obfuscated public ledger. This means no outside observers can see transactions in Monero.
Monero can be purchased with Bitcoin using the Cake Wallet app or the ChangeNow website. These options allow you to avoid having to create an account on an exchange.
If you have a small amount of Monero, I recommend storing it in an Edge mobile wallet.
For large amounts of Monero, I recommend using a Trezor wallet to secure the Monero desktop app.
Here is a list of places where you can spend Monero. The largest retailers accepting Monero are Coincards (United States and Canada) and Travala (Worldwide).