Your Ren'py save files on Mac can be found at this path: ~/Library/RenPy/game_directory
To access the above path: Open up a Finder window Press COMMAND + SHIFT + G Paste/enter the path (~/Library/RenPy/game_directory) into the text field and hit Go.
A mid-game save file can be found through Discord or here: https://jamleng.itch.io/lewd-town-adventures/devlog/509522/lewd-town-adventures-...