I love Notion for the database feature. I really really want to store semi-structured data without the need for DB meddling. I don't want to store life stuff in a hosted service though and haven't found a comparable easy-self-hostable alternative that has a web-ui for multiple folks to use. Outline is the closest I've found, but doesn't have databases.
I still recommend folks get started with Trello for team-task stuff. Maybe it's grown after Atlassian purchased them? I found it missing many stats I needed to track work though. It's definitely an easy way to get started in Kanban.
Airtable alternatives (Baserow, NocodB) both lock SSO behind the paid plans. And the pay model here seems restrictive.