If you wanted to see a list of services available on your Linux server/desktop, try the following command:
systemctl list-unit-files --type=service
Upon executing this command, you'll be able to see a list of services along with their statuses i.e whether the service is enabled or disabled.
This can come in handy if you want to know the status of a specific service like
systemctl list-unit-files --type=service | grep "nginx"
Hope you found this tip useful.