Clubbing in Prague

Hey :) I'm planing a trip to Prague in february and i can't decide between two options. I will go there by myself and would like to go out/dancing. I could either go to a pubcrawl (yes i'm a tourist and i'm doing touristy stuff🙃) because it's a group and i don't have to figure out where to go. They will lead us somewhere and hopfully this will be fun. The end of the tour is always club "Karlovy Lazne". Or i go to the Club "Epic". There is a DJ i would like to see. Now my question to the partypeople is, wich club do you prefer? Or do you recommend? Is one nicer than the other one? Are the people nice? I am going to concerts alone all the time and don't have any issues with that, but never have been to a pubcrawl or a technoparty on my own. I am not scared or something, but i'd like to feel comfortable. I am german, female and 35 years old if it's necessary to know.

Thank you in advance :)