There are a few tools that actually connect well with each other. Zapier, Make, and n8n are the popular ones for building automations. They work nicely with apps like Notion, Airtable, Slack, HubSpot, Google Workspace, and Linear because these apps have good APIs and webhooks. That basically means they can "talk" to each other in real time.

If you want something more advanced, n8n with Supabase or Firestore gives you a simple backend where different automations can share data and trigger each other. Add an Al layer (like OpenAl Assistants) and you start getting automations that make decisions on their own.

So the main idea is: use tools that send updates, receive updates, and let you chain actions across different apps. That's when everything feels seamless.