I can't find my iPhone in my house. How can I call my own phone from my computer?

Hello! I see you want to call a phone number from your Mac. There are many types of software that will let you do this, such as Google Voice, and Textnow. Sign up for an account and you will be able to call phone numbers from your desktop computer.

Ask (via e-mail) a family member or acquaintances to call you.

Then you don't need any software.