Microsoft announced that they will extend the availability of paid Windows 7 Extended Security Updates (ESU) to businesses of all sizes. Previously, Windows 7 ESU was only available to Windows 7 Professional and Windows 7 Enterprise customers in Volume Licensing. The Windows 7 ESU will be sold on a per-device basis with the price increasing each year. Starting on December 1, 2019, businesses of any size can purchase ESU through the cloud solution provider (CSP) program.
For the official Microsoft announcement, please visit: https://www.microsoft.com/en-us/microsoft-365/blog/2019/10/01/windows-small-midsize-businesses-stay-secure-current/.
Here’s also a general FAQ about the Windows 7 End of Support: https://support.microsoft.com/en-us/help/4057281/windows-7-support-will-end-on-january-14-2020.