Whats a good resource? Any guides or such you found particularly helpful? I’m only familiar with some basic x86 assembly, no SSE, AVX, etc. would it be “too much” to try and learn any Risc-V assembly?

Also, are there Risc-V devboards, and if so which ones are good, and what do you use yours for? Are they at an 8-bit microcontroller level, or ARM-running-Linux type beat? Asking the latter because it’s always fun to have a real target when learning a new architecture.