If you need quick access to your phone while actually running, this isn’t what you want, but if you aren’t married to the idea of an armband the Flipbelt is a pretty solid choice for running.
I answer the phone and issue Siri commands with my AirPods while running when needed and just have pace and mile voice intervals setup, so this works quite well for me. It’s also easy to get your phone in and out, but I wouldn’t advise doing that without stopping to do so.