I’ve also switched to GoodReads. I used to use an excel spreadsheet but find that goodreads is easier to access from anywhere including mobile devices. Even though you can access Google sheets (or other cloud based spreadsheet) from your phone, I don’t think it’s as easy to use.

My library also lets me create a wishlist through their digital library (they use overdrive), so I’ll peruse the new releases every so often and add them to my wishlist there so I can keep track of what is available there and I’ll put holds on things that I really want to read.