Select a picture that you would like to appear with your obituary and put it with the interesting story of your life! So what I'm saying is to write it yourself!
It takes a lot of time and effort to not only reflect upon our lives, but to then write about it. If you have a talented family member or friend to edit your remarks, that would be worthwhile. You can include the names of those who may have inspired you to reach your goals or to choose a particular job or activity that was very successful. You can also hand out credits to family and friends who were very important in your life.
You also might want your obituary to appear in the newspaper of the town where you grew up, as well as where you're residing at your death, as those folks would like to know about your life in your later years.
Newspapers charge the proverbial "arm and a leg" to publish obituaries, so tell your Executor that's what you want!
Jerry