im looking for a router for a little homelab and i cant find it - at least 8 ports for non fiber connections at least 2.5G preferably 10G + 2 fiber ports for 10G (or better) network; i need to be able to choose any 2 ports as upstream (my cable modem and gsm router will be connected there over wire) and i need dynamic routing (or so i think) to be able to automatically use gsm when cable fails and on other connected computers ill want to use gsm by default and when gsm fails i would switch to cable - is that doable with your solutions (hardware and software) please?
i would also need a good 5g router accessible via optionally wifi and definitely eth (non fiber) and upses for all these devices - would be good if they were of same make as the routers
Now, seriously, it is the best router you can have in a home/home lab for a very reasonable amount of money, the "next" step would be a CCR, namely the: https://mikrotik.com/product/ccr2004_16g_2s_pc
but it is double the cost.
With any Mikrotik router, even much cheaper ones you can do what you want (usually called failover).
About the 5G router, it depends if you want it internal or external (on a pole on the roof or similar).
For external, there is the "classic": https://mikrotik.com/product/atl_5g_r16
and the brand new: https://mikrotik.com/product/lamp_5g_r16
the first is a typical 5G antenna/router (strongly directional) the second uses a different principle, omnidirectional antennas to be able to connect to different towers.
Choosing the one or the other greatly depends on your local 5G coverage.