I built this as a solution to my storage problem for all my farms in survival. I call it Shulkle (shulker+google). It will search its inventory of shulker boxes until it finds a single item in one of them to match your input block. Shulker box storage could be expanded infinitely, however mine can hold approx. 490 boxes (however, the more boxes in the system, the longer it ay take to find the item. I was inspired by EthosLab's nexus. If built on a server or used in a video, please provide credit.

*Last two pictures are an example of how you might set it up for use. The fourth picture is all that is included in the pack.