If you're bored or unimpressed by Waze's voice options, Waze now lets you record your own.
Easy-peasy DIY voice
Just check your settings under Sound & Voice and you will discover the Voice Recorder menu. Just record all 39 phrases in Waze and you're good to go.
Now, it might be an interesting option for people who want a loved one to voice their navigation. But if you just like the sound of your own voice, we're not going to judge you.
It's unfortunately only available in the latest version for Android, it's not in the iOS version. As to why that is, it's probably because Google owns Waze after all so it made sense to update the app on Android first. No word if and when the feature will be made available for your iPhones, sorry.
In the meantime, check out how to get the most out of Waze.