The thrill of hunting sound is unlike anything else. Maybe 20 years ago I used a software synth to match the sound I had from tinitus. It magically erased my tinitus, making me feel like I was somehow a walking video game. Pew pew - alien in my head zapped!
Here are a couple of links to very good synths / sounds from Dr. Pigeon. I used the second tool for an improvised album. Really cool tool.