Microsoft Home Use Program (Microsoft Official Site for HUP) has Microsoft Office Professional Plus 2019 PC or Office Home and Business 2019 Mac for $14.99. To qualify for this benefit you must verify that your email address is from an eligible participating Microsoft customer account. (Many company emails qualify, no program code is required)
Just received an email from Microsoft Home Use Program that Office Professional Plus 2019 (Windows/Mac), Project Professional 2019 and Visio Professional 2019 are all available for download for $14.99 each.
The pricing may vary depending on your company's relationship with Microsoft.