Problems setting up cron
I prefer the wp-cli method to all other methods.   Can this work at your host?  https://docs.civicrm.org/sysadmin/en/latest/setup/jobs/#wp-cli

If you do not have Command line access, but the host provides a cron interface and wp-cli you can create a shell script to call:

#!/bin/bash 
/path/to/cli/php /path/to/wp --user=&lt;cron user&gt; --url=https://&lt;site&gt; --path=/path-to-web-root --timezone="&lt;php timezone&gt;" civicrm api job.execute auth=0


In your example calling just php may be the issue as cron may not now the path to the cli php executable.