Here is how to find your adobe premiere pro autosave location:
Find the Auto-Save Folder
Premiere stores an auto-save folder for each individual project. This folder is typically located next to your project file, alongside the Audio Previews and Video Previews folders.
Once you open the Auto-Save folder, you should see 20+ saved projects. They should be organized by date and time.
Premiere Pro Crash Recovery
If your Premiere Pro project just crashed, take a look at the video below to learn how to recover your project: