Recover data after deleting partiton and creating a new one?

Long story short, while trying to troubleshoot a lousy 1.5TB WD drive I had accidentally deleted and recreated the partition on a different USB drive without noticing. All the partition recovery softwares' instructions don't seem to mention this scenario, so I'm not entirely sure if they would help.

What are my options? I don't have a spare drive to restore to (thanks to WD refusing to admit their negligence). The drive was only using 350GB of 900gb, but it has been filled and erased several times without defragmenting. I have it unplugged now.

It's not entirely a disaster; aside from my (dubiously obtained) movie collection there's nothing really that I need and can't redownload or have on my SSD. Just be nice if there was a quick fix.

Will that work when I don't have a spare drive to recover to?