Pyrazolam does not last as long as diazepam, but it is pretty long lasting for a fast acting benzo. Longer lasting than alprazolam and etizolam for sure.
I wasn't a big fan of pyrazolam as i found it a little edgy and depressing. Could have been the circumstances. Pyrazolam is extremely close in structure to bromazolam with the only difference being a pyridine ring instead of phenyl. That said bromazolam is supposed to be quite abit superior to pyrazolam. I have never had bromazolam but from I understand it is quite good.
Flubromazolam is one that lasts very long from my experience, perhaps as long as diazepam but it is much stronger. It results in the best sleep of any benzodiazepine ive ever come across, but results in next day sedation if you aren't careful with the dosing. It is the most potent RC benzo.
If its between pyrazolam and bromazolam I'd definitely go with bromazolam.