GHB, mdma and crystal. I've done them all before, but would love to give them a second go.
I'll skip heroin though. Reading through this forum makes the entire process look way too complicated.
I forgot to add why:
I remember ghb being incredibly chill and euphoric with zero side effects or come down. With the proper dose of course.
Mdma was fun when I tried it but I was way too cautious and want to see what a bunch will do. Plus I have the money now to eat a bunch
I didn't like crystal when I did it before. But I used it at an inconvenient time and had a bad experience. I suspect I'd like it a lot more now esp. after gaining experience with coke. Plus I love vaporizing drugs but crack has terrible side effects. So crystal might help fill that void.