It is suggested to hang something positive, and never choose something too vulgar, such as "home and everything", which is too vulgar. It would be much better to hang a pair of "elegant and harmonious rooms" Similarly, calligraphy works such as "Heaven rewards diligence" and "Jingyuan" are also suitable for hanging in the living room.
If you are a friend who likes poetry, it is also very decent and imposing to choose a humble inscription, Qinyuan Chunxue, or Nian Nujiao's calligraphy works to hang in the living room at home. Finally, I would like to advise you to grasp the size. Calligraphy works that are too big or too small are not suitable for hanging.