Amazon.com: 4G VPN Router, Industrial Dual Sim 4G LTE WiFi Router 3G/4G Yeacomm YF325 Wireless Modem Router Unlocked with Sim Card Slot, External Antenna Cellular Modem in North/South America, NOT for Verizon :
Cellular VPN Router AirGate 4G - IoT devices - Controllers, Thermostats, Data Loggers, Solid State Relays, Sensors, Transmitters, SCADA, Data Acquisition and Temperature Controllers
D-Link 4G LTE M2M VPN Router - Norbain
LTE Wireless 300Mbps 4G WiFi Router 4G Card Wifi to Wired CPE Support VPN 2.4G | eBay
GL.iNet GL-E750 (Mudi) 4G LTE OpenWrt VPN Router, T-Mobile Only, 128GB Max MicroSD, 7000mAh Battery, OpenVPN, WireGuard, Tor, Router that You can Program (EC25-AFFA Module), North America Only - Walmart.com
BiPAC 4520VAOZ 4G/LTE Dual-SIM Dual-Band Wireless VoIP VPN Router