Ideally something that allows me to see the characters in a table, sorted by character blocks, like in the LibreOffice “Insert Special Characters” dialog, so that I’m not limited to some predefined text but being able to see all characters.

Ideally something that allows me to see the characters in a table, sorted by character blocks, like in the LibreOffice “Insert Special Characters” dialog, so that I’m not limited to some predefined text but being able to see all characters.
