My computer is asking me to select where to install OS X . How do I finad a place to install it?

colie259 wrote:

My computer is asking me to select where to install OS X . How do I finad a place to install it?

If the installer does not present your internal SSD/HD you have a hardware issue.

You can try and fix this your self—

Boot into Internet Recovery (Option Command R) and from the dropdown menu: Utilities>  Disk Utility> run the First Aid on your Macintosh HD (and the "Macintosh HD-Data" volume as well if Catalina/Big Sur) If errors are found and repaired, run again until no errors reported.

Disk Utility>View>Show All Devices The best sequence is —

• Volume level

• Container level

• Parent drive

Recovery: https://support.apple.com/en-us/HT204904

It should show you a list of available drives. Choose one.

If that simplistic solution doesn't answer your question then we may need to back up here and get some background story to what you are trying to do.