Grammar Check
Grammarly points out grammar mistakes and encourages you to use active voice.
Inverted Pyramid Style
https://ohiostate.pressbooks.pub/stratcommwriting/chapter/inverted-pyramid-style/
This website will teach you how to write in an inverted pyramid style.
Memo Examples
https://www.examples.com/education/memo-writing.html
This website provides examples on how to write memos.
Passive Voice
https://justpublishingadvice.com/what-is-passive-voice-and-how-you-can-stop-using-it/
Just Publishing Advice explains when it is appropriate to use the passive voice and when it is not.
Concise Writing
https://centerforplainlanguage.org/an-instant-way-to-shorten-your-sentences/
Center for Plain Language teaches you how to write more concisely.