The safest and most legal way to have a WBFS collection is to create it yourself. This ensures the files are virus-free and that you own the rights to play them.
: Using a cloud drive helps you categorize rare titles like Fire Emblem: Radiant Dawn or Metroid Prime Trilogy into distinct folders for quick access. How to Prepare Your Collection
files, which are always 4.37GB regardless of the actual game data, WBFS files are "scrubbed"—meaning they remove "junk" data, significantly reducing file sizes. Hosting these on Google Drive allows for high-speed downloads compared to traditional torrents or slow-hosting sites. Top Wii WBFS Collections & Archives
Files on Google Drive are automatically scanned for viruses (up to a certain size limit), providing an extra layer of security against malware.
Finding a reliable Wii WBFS games collection on Google Drive