Instructing would and SHOULD enhance your resume, but it’s also one of the most commonly failed ratings. Don’t get it if you are not actually going to use it because a training failure will do you more harm than an unnecessary and unused rating will do you good. Same thing for seaplane ratings and other interesting and even fun similar stuff.
Once you have a seniority number where you want to be you can get your gyrocopter rating, lighter-than-air rating, powered parachute rating, and hot air ballon instructor certificate. Don’t dig yourself a two or three year hole by failing at something you don’t need.