How to get insurance

If you mean AppleCare, and if you are in the U.S., see the information in AppleCare Products - Mac - Apple including the following:

How to buy

1. Purchase AppleCare+ with your new Mac.
2. Or buy it within 60 days of your Mac purchase:

• • On your device (go to  > About This Mac > Support)
  • Online (requires you to verify your serial number)
  • At an Apple Store (inspection of Mac and proof of purchase are required)
  • By calling 800-275-2273

AppleCare offers limited accidental coverage, so read carefully. It is more thorough for manufacturer defects and direct support on Apple's products.

https://www.safeware.com/

is a third party insurer that covers most forms of accidental damage, that is independent of your homeowner/rental policy.

Your homeowner rental policy may have its own coverage and exclusions/limitations. Discuss with this policy if claims of a particular type will put you at risk of losing coverage, or raise in rates.