Luckily there are Chinese vendors who have made new compounds of Isotonitazene and other (fentanyl) RC opiods. I won't name them all but a good search on Google and I can still find my exit for about 100$. Crazy ultra potent chemicals which should be volumetric dosed if it's for recreational purposes.
ETAZENE / Desnitroetonitazene/ ๔єรภเtг๏єt๏ภเtคzєภє
seems promising... and saw it at a legit vendor. I see alot of options after a quick search N will be plan d or e now

But your right they do their best to keep it all under the radar.