Any router can replace that but you will need a LTE modem.

Personally, I'd go for either the RB912UAG-2HPnD or RB922UAGS-5HPacD.

Any router can replace that but you will need a LTE modem.

Can you recommend one model for me? I have the Huawei E3372 LTE Modem. Which one is good for me?

if you could send supout we can check if we can add support for e3372.

For Stable 4G Mikrotik i alo sugest RB922 Plus Sierra Wireless MC7710 / Huawei - ME909u-521