what rear shocks are the best for the ride

Basically, what are the best shocks to use on my wagon for the ride quality? Sears quoted me $ 379 for (Monroe Sensa-Track) 2 front struts, 2 rear shocks and the alignment. It’s not too bad for So. CA, but am I going to get that "skippy" ride on the back that some of you are talking about? I am looking for the best possible ride without upgrading the tires because I just got a set of new 15”.
Also, how do you tension the serpentine belt to the spec & what is the spec. I think I made a mistake of spraying some belt dressing on it, it was a little noisy, now it’s gotten worse…

Thanks for your help,

what do you mean by "best ride" ? ? ? soft and easy, or good handling ?

soft and easy - keep it stock

good handling - Koni or Bilstien