Airtable is great for rapid iteration with a relational-database data model. I've seen it used as everything from a CRM/ticket-tracker to a Kanban tool. A Pro p

Airtable is great for rapid iteration with a relational-database data model. I've seen it used as everything from a CRM/ticket-tracker to a Kanban tool. A Pro plan supports up to 50k rows per "base" (schema), fully real-time collaborative. Salesforce is also a platform that lets you do practically anything without coding. Beware though: here lie dragons, a hellish programming experience... and incredible levels of career stability as a Salesforce consultant.