If you are specifically looking for a Windows/Office Activator (the main reason people visited Free4PC), the safe community has moved to GitHub.
TechSpot has been a trusted tech news site for decades. Their Downloads section is a direct competitor to what free4pc should have been. free4pc alternative top
MajorGeeks is the oldest software directory on the web. They are strict about malware but do host some freeware utilities that can extend trial periods (like Re-Loader for Windows). If you are specifically looking for a Windows/Office