The MIPS architecture remains popular nowadays, so it is no surprise that the number of tools supporting it is growing as well. While Hopper and Relyze don't support it at the moment, Binary Ninja mentions it among supported architectures.
The situation becomes more complicated when it comes to dynamic analysis. For example, IDA still doesn't provide a dedicated debugging server tool for it. Again, in this case, the engineer has to rely mainly on the QEMU emulation, this time with IDA's remote GDB debugger, radare2 or the GDB itself.
In order to connect to the GDB server using GDB itself, the following command needs to be used once it's been started:
target remote 127.0.0.1:1234
file <path_to_executable>
Now, it is possible to analyze the sample.