A few more options are Notion[0], Dynalist[1], Nuclino[2] and Nimbus Note[3].

I've been using Dynalist, but Nimbus Note looks promising.

[0] https://www.notion.so/

[1] https://dynalist.io/

[2] https://www.nuclino.com/

[3] https://nimbusweb.me/note.php