Ah, okay and you're looking for a benzo to replace the diazepam suggested when using SN?
What made you bring up klonopin/clonazapam, is it a benzo you're already familiar with? I can't say I know for certain. My view though, is that most benzos would work. Some are much shorter acting and I think flubromazolam may be shorter acting than Clonazepam and diazepam. Diazepam has a really long half life compared to a lot of benzos and breaks down into active metabolites which are are benzos in their own rights.
With the research chem type benzos like flubrmazolam, fualprazolam, flubromazepam etc they're all pretty strong. Stronger by volume than the benzos approved in medicine but those benzos are equally as easy to obtain really. I guess depending on where you're getting it.