Buy a cat :laughing:
Mine took care of our gophers quickly.
https://www.amazon.com/Sweeneys-Gop..._4?keywords=gopher+bait&qid=1574802223&sr=8-4
This is what my granddad uses for His gophers. Just dig a small hole in several mounds until you find the tunnel, usually about an inch or 2, and place it in. Then wait for buzzards to flock. lol