Paul,
If you had asked 2 weeks ago, I would have sent you my Google Nexus 6P. I did just trade it in on a new phone.
I would think you might want to have a larger screen. The 6P does run Android 8 (Oreo). You can pickup a refurbished 6P off on Amazon for about $85.
https://www.amazon.com/Huawei-Nexus-6P-Unlocked-Smartphone/dp/B015YCRZ1K