This is the most common result in a Google search. Thousands of websites offer "Direct Download" buttons for Windows 7 ISOs. This is the danger zone. Since Windows 7 is abandonware, these sites often inject malware, coin miners, or backdoors into the ISO file. Downloading a Windows 7 ISO from a random blog is a high-risk activity.
Here is the full story behind the search for a Windows 7 32-bit ISO, covering its rise, its fall from official availability, and the reality of downloading it today. iso windows 7 32 bit download