Google Picasa for Mac (the desktop app, now discontinued), was great for that. Keep .jpgs in folders, and use picasa to search and browse on top of that. Seeing

Google Picasa for Mac (the desktop app, now discontinued), was great for that. Keep .jpgs in folders, and use picasa to search and browse on top of that. Seeing at it seems to be a 32bit app, I'll be holding on to Mojave for much longer than usual.