Ask HN: Best flow to preserve digitalized rare photos?

inb4: I am non native so I proofreaded the below paragraph with AI, sorry for the em dash

I just managed to download and safely store approximately 4,729 digitized photographic slides that my grandfather took throughout his life while traveling around the world. I roughly know the timeframe spans from the 1960s to the 2000s. Some are labeled; others are not. The chronological order is completely messed up, and it will take me a long time (especially if I have to do it alone) to parse, identify, and group all the files into collections. Meanwhile, I also want to share them immediately online under a CC BY-NC-ND 4.0 license to prevent commercial exploitation, as this project will take years and proceed in batches with pauses in between. I feel people deserve to see the world as it was in the past—from wild Australia to the deep Arctic. My plan: Submit everything to the Internet Archive without any organization first, then curate and organize directly on the IA while keeping everything public. I also realize I'm very new to this kind of digital preservation, so I'm open to hearing from y'all if you have any advice. Thanks!