I don’t have a keyboard to enter password on iMac

Hey!

As other replies to your question suggest, you can buy a wired keyboard at an affordable price, but I believe that your iMac must have come with a Magic Keyboard right?

But you will be needing a keyboard to login to your Mac!

Plus, after you arrange for a keyboard to unlock your mac, you can set up a temporary on-screen keyboard, here are the steps: Use the Accessibility Keyboard on Mac - Apple Support

Thanks!

– Arnav

You can't that I know of, why would you want to boot without a keyboard?

Cheap, wired keyboards are available at many retail stores. Exactly how would you think you could enter a password without a keyboard?

Is this a new iMac?