I think it would depend on your use case.1. Airtable has alot of integrations with no-code tools already so it would be an ideal choice for you to go for.
2. Mean while, Notion api has just been launched so it might take some time for others to add those integrations. But I still think if your cms is not too complex you can go for notion. I built quarate.in with Notion :)
3. Obsidian- I have not extensively used obsidian so can't comment on that.
I think it would depend on your use case. 1. Airtable has alot of integrations with no-code tools already so it would be an ideal choice for you to go for.
2. Mean while, Notion api has just been launched so it might take some time for others to add those integrations. But I still think if your cms is not too complex you can go for notion. I built quarate.in with Notion :)
3. Obsidian- I have not extensively used obsidian so can't comment on that.