You don’t have to download any third-party apps or additional software to read text aloud on your Mac.

  1. Click the Apple icon in the top-left corner of your screen
  2. Select “System Preferences…”
  3. Click “Accessibility”
  4. Select “Speech” in the left sidebar
  5. Tick the box next to “Speak selected text when the key is pressed.” The default way to read commands is to press the “option” + “Esc” keys.

After that, you simply have to highlight the text you want to hear and press the specified keys on your keyboard.

Ref: businessinsider.com/how-to-get-mac-to-read-text