Triazolam was the only one that had a kick. A methadone clinic doctor gave me 200 as I lowered on methadone. The clinic was private owned, pay your $10 a day and you get your methadone. The clinic was owned by two brothers. Long Beach CA (if anyone remembers 40 years ago). Pay the one brother the $10 and you get to see the other brother (the doctor) and get what you need. No questions asked if you paid your $10.
But as far as trying to get euphoria from a benzo I think sekio said it best. "benzos produce euphoria? funny, all they made me do was break glassware and start fires by mistake".
They really are not euphoric unless you kill an anxiety attack. And I don't get those much so when I try to make a benzo a recreational thing I regret it everytime. But for anxiety they are a great tool.
And yes they all can feel like benadryl lol