Device with failover between sim1 and sim2

The last post was July 2020, i need to have failover between SIM1 and SIM2 and supports for vlan on the same router.
I have apu3b4 pc engine with openwrt, but i need to configure this logic from scratch.

Do you suggest any good router (based on Openwrt) that supports automatic failover between sim1 and sim2 using the same lte modem?


Based on OpenWrt - Teltonika RUT950 or RUT955 (see: )