à re is the party hub of Sweden during the winter, and there is party 24/7, if not in one of the bars or clubs then in a cabin not far away.
Popular spots are among others:
Bygget
Werséns
Diplomat
If you like to relax and talk you can go to for example:
Fjällgården
Tott
or one of the many bars and restaurants scattered around à re Torg.