Trippy: mxe/ketamine
Ketamine and meth the time I did it was a very euphoric combo while sinking into my bed listening to m83.
I can't lie I love me some heroin, the rush is great but I get a strong histamine reaction, borderline allergic. Oxycodone orally is a great high since it has no iv rush.
Some booze of choice + real fish scale Coke can be really euphoric.
And really good MDMA in the perfect scenario at a rave of some sort can be incredibly euphoric.
Cannabis all around is a great drug that can be used day in and day out with little consequences, however I suffer from anxiety so that's the real drawback of weed. A benzo or opiate combines well with cannabis.
For sex, meth and ghb will make it feel like nothing in the entire world is better.