Reliable dual-sim LTE routers for backup access

I’m looking for routers for remote sites, used primarily for backup remote access when circuits go down. The requirements are VPN support (IKEv2 ideally), PoE in (passive or 802.3af), and dual-sim. 802.11x is not preferred as it won’t be used for security reasons anyway

I’ve used Digi equipment in the past and found it very stable and very featured- very, very, very featured, which is probably why the cost was so high (Digi6335 - these were ~$500/each at the time of purchase

I’m not looking for any centralized cloud management, SSH is perfectly fine

Any recommendations for brands to look into? I’m familiar with Accelerated (now Digi) and Cradlepoint as very reliable but costly. Is there something between consumer junk and higher-end enterprise that doesn’t require sacrificing stability and features?

Bonus points for anything that provides the ability to run custom scripts via access to the OS. The Digi6335 has a very full-featured Linux system underneath and provides full access to the system via SSH, which was useful in allowing some lightweight custom scripts that send periodic updates to a REST API

Trying to avoid Huawei but not ruling it out...