Which website provides quality apk mods?

Currently on google there are many websites that provide MOD APK versions but I really don't know which website to use because I don't know if it's safe for phones or not. I've never downloaded games or mod apps from websites so I don't really know if a site is safe there. I refer to some forums and see people mention the website and see that people appreciate it quite well but I am very confused as to what to do. Please give me some advices.
Thank YOU.
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