There are some websites and online communities that share links to PKG archives, which can be downloaded and installed on a PS4 console. However, I must note that:
To find specific titles, users typically use advanced search operators. Searching for "PS4 PKG collection" or "PlayStation 4 Redump" within the Archive search bar usually yields the most complete results. Many contributors upload "sets" categorized by region (USA, EUR, JPN) or by alphabetical order. Essential Requirements for Installation descargar juegos ps4 pkg archive link