A family of Microsoft word processing software products for creating web, email, and print documents.
If you want a one-time payment license (not a subscription), Microsoft Office Home 2024 is a good choice, as Dave says. It is the cheapest one-time payment license.
However, note that Office Home does not include the classic Outlook. See https://www.microsoft.com/en-us/microsoft-365/p/office-home-2024/cfq7ttc0pqvj.
If having Outlook matters to you, you will need to get Office Home & Business 2024 instead; for more, have look at https://www.microsoft.com/en-us/microsoft-365/p/office-home-business-2024/cfq7ttc0pbm7.