Late Father Left Us With A LOT of Coin Sets

(I've posted this elsewhere but just noticed how large this community is and thought I'd go ahead and post here too)

I'm at a loss and need help.

My father passed in 2023 and left us with...a lot of coins. Like multiple safes worth. And they are not organized nor did he notate anywhere which ones he had. I tried an excel spreadsheet but it became tedious. Not to mention how much effort it was to find one someone wanted to buy once I'd listed it online. Nothing is particularly NICE per se, just a lot of mint proof sets over the years with various other coin sets thrown in there.

I guess my question is: how do you all keep track of these kinds of things without losing your mind? I use Evernote for a lot of things if that's helpful but it definitely doesn't have to be in that. If you have a template in Google Sheets or Excel, I'd love to have a go at it. Tedious as it may be...we need to get these things organized and gone because they're taking up valuable real estate in my mother's place.

TIA!