Hi @sicahjes
While there isn't a native option to sync Notion with Airtable, there are some integrations out there that would allow you to connect the two as you've found. I'm not sure if any are within your budget, but you were on target by mentioning Zapier, Whalesync, and Make. You could also try Unite.io.
I see that you don't want to have to manually import the data, but you could explore the Emailed data sync integration where all you have to do is email the file and it will be imported into Airtable automatically.
If the Emailed data sync doesn't seem like an option, Make might be your best bet. I haven't used Make to connect Notion to Airtable, but I would recommend exploring using any of these triggers:
in conjunction with one of these actions: