I highly suggest checking out Alloy Automation's Flow alternative. They have a library of workflows that are tailored for stores that aren't on Plus and it covers use cases from shipping/fulfillment to customer support and marketing.
There are 60+ Shopify app and non-Shopify app integrations on the platform already. They're partnered with the likes of Gorgias, Omnisend, and Postscript on the Shopify front, and other non-Shopify tools like Airtable, Google Sheets, Intercom, Zendesk, and others.
Definitely check them out, they have a free tier!