It sounds like you're looking for content related to downloading PS4 PKG games—possibly "extra quality" or "portable" versions. However, I should note that downloading copyrighted PS4 games from unofficial sources (unless you are dumping your own legally purchased discs for personal backup) typically violates copyright laws and platform terms of service. "Portable" PS4 games don't exist in the same way as PC portable apps, since PS4 games require installation on the console's hard drive and proper system firmware.
When browsing for your games, verify the source. Look for trusted repositories that verify their files (checking MD5 hashes if possible) to ensure the download isn't corrupted. pkg ps4 games extra quality download portable