I use this one, and I love it. It does a good job, isn't too loud, and is really easy to clean. The entire stainless steel cup is removable, so unlike a typical coffee grinder, you don't have to worry about anything getting left behind or stuck in some little crevice.
I think I paid about $20 US for it on Amazon. I'm not sure why it isn't available anymore, but I'm sure you could find similar features in another grinder.
Oh man, it’s just an old school pulsating one. I’m not even sure the brand. I did get a small hand grinder though, in case people are sleeping or I bring it to work.
Something like this is kind of what I have
https://www.amazon.com/dp/B01I20TMGC/ref=cm_sw_r_cp_awdb_t1_ddpCAbHRQ94J8
Edit: reviews say otherwise on the quality of that one actually.. but that’s the idea.
Use a coffee a bean grinder
Check online for ones used for the spices'
They work better than regular grinders
Like this https://www.amazon.com/Epica-Stainless-Removable-Strongest-Efficient/dp/B01I20TMGC/