Our team has a lot of 3d models that we've built, purchased, or found for free online. They are all saved into a Library folder on our server, sorted into various subfolders, and a thumbnail rendered for each. When we need something, we can either do a Merge from within 3ds Max and navigate to the correct folder, or find the model in Windows Explorer and drag/drop to merge it into the scene.
Years ago, however, I used a free app called Connector by Design Connected. You tell it where to look on your drive, and it will display thumbnails for any images, 3d models, etc. that it finds there. You can also tag and search through it to find what you need. Once you locate the model you want, you can drag/drop right out of Connector into 3ds Max.
https://www.designconnected.com/connecter/desktop-app
Obviously, you'd need to spend the time generating all of your content to create the library. But you can always start by finding objects in past projects that are already modified and do a Save Selected to isolate them into their own file. A personal note on this: if you save selected objects from a scene, I recommend opening a fresh Max scene and merging those objects in, then saving that file. This will strip out any outside references due to unused materials in your editor, render settings, etc., and give you a much cleaner, efficient file for your library.
Chris Medeck
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