Looking for router with strong range looking for help
I am looking for a router that can use the two bands concurrently as often with my router the 2.4 band drops and the 5 is active or the other way around. And the wifi signal is bad. In my room my neighbors signal is stronger than mine and the router isn't very far away. One room that is next to a separate garage is made out of metal or aluminum walls as I was told when they installed the internet. The wifi is at times unusable in that room. I know those materials really hurt wifi signals but was wondering if there was a router that might be hurt by the walls but still be usable.
Looking for someone to provide feedback on their router or a recommendation would like to spend around $125 and was wondering which model is the best at this or a similar price point.
Thanks for reading