Yes, if you want to inject benzo than PG solution is the gold standard
However if you are using ethanol than, dissolve 2-3mg clonazepam in high proof e t hanol, then dilute it to 20% with clean cold

water
Find a vein, and Inject SLOWLY SLOWGA!)
Doing this will eliminate the 2-5 hour peak and instead, peak effects 8n 15-
-30 minutes, and initial effects within 5 minutes.
You can injec5 up to 4mf this way
.Lorazepam is also good for injecting, and a. Few MG of Xanac simply feels good with an opioid, though do NOT try that
I used to I hectic Clonazolam when I was sick and it freaking ruined me
As for solubility, here are a few off the top of my head

:
Diamorphine HCL (Heroin No 4 ) - Half a gram per ml (500mg/ml); Note that is Pharm grade pure Diamorphine
Hydromorphone: 333mg/ml
Oxycodone: I THINK it is around 180mg/ml, certainly over 100 in any case
Oxymorphone: quarter gram pet ml (250mg/ml)
Morphine: less than 100mf pet ml, I think

around 80mg/ml
Klonopin: 0.09mg per ml
Note that the late Captain Heroin posted a list of benzo solubility s, a couple can be made more soluble by decreasing PH
Typically, though,, it is PGP or z ethanol I
I personally have used Ethanol and it works, though it is hard on your veins
I have almost none left, so I have dissolved 2-3mg Ativan in 80 proof (40% abv) then diluted and Injected into a muscle for slightly higher Cmax, and faster onset (1-2 hours instead of 3 or 4)
Just giving info, do not copy what I do
BTW, since you make a volumetric solution of Clonazolam using ethanol, it is easy to inject
Just dissolve Methadone or buprenorphine in half a syringe, other half 100 proof Vodka containing Clonazolam, ?(2-3mg) inject slowly and you feel amazing! Only for vets though...