Suprmind offers six different modes to help you tackle tasks in the best way...

https://source-wiki.win/index.php/ChatHub_vs_Suprmind_for_Consultants_Writing_Client_Memos

Suprmind offers six different modes to help you tackle tasks in the best way possible. It also includes an Adjudicator brief to quickly settle conflicting ideas. You can try it out with a 7-day free trial before deciding if $19 per month fits your needs