What is better to replace keenetic viva with?

Question

network hardware

Greetings! There is an old Keenetic Viva router, it works in a small organization for + -30 devices. And, in general, it works well, it does not require attention to itself at all. But recently I found out that on January 1, they disable their own ddns domains, leaving only three with ssl support. Although it stopped working just a couple of days ago. And the problem is that on old firmware it is not possible to work with a secure domain, and updates for it are no longer expected. Accordingly, the question of replacement arose.
A few specifics. There are two points, for each trading floor, office and warehouse. The Internet from the provider comes to the router, and a switch and a wire to the second point are connected to the LAN. The construction is rather primitive. Each warehouse has an access point, all addresses are managed by keenetic. All devices (including employees' phones) are on the same network.
All I would like to see in the router is its own ddns service and stability. Somehow it did not work out with third-party free services. ddns is used for external connections, mainly rdp. About port forwarding, gigabit ports (at least 2-3), I think it makes no sense to write.
The question, in fact, is what is better to choose. Take a new viva (the price bites a little) or there are alternatives, maybe someone has experience using other devices in similar scenarios or knows about viva's sores. Please share) There are no special requirements, as you understand, as well as the desire to mess around with it after purchase.