Walmart with AnkerDirect has the eufy Security HomeBase 2 on sale for $31 with free shipping with Walmart (free 30-day trial), $6 shipping, or free shipping on $35+. 

Compatible devices include eufyCam 2, eufyCam 2C, eufyCam 2C Pro, Video Doorbell 2K (Battery-Powered), and Alarm Kit. Has 16GB of local storage. No monthly fees.