I think you have been learning how to play specific songs. You've now got several into memory and you want to know what is next. Right?
Well you can keep learning specific songs, and in a couple of months you will be able to play eight songs most of the way through -- or you can learn how to build your own bass lines and provide accompaniment rhythm to hundreds of songs. Up to you which way you go.
WWW.studybass.com is a good place to start. And a bunch of us have decided to study the book
Building Walking Bass Lines by Ed Friedland and then discuss the lessons here on this forum. Join us.
You will learn how to use acceptable generic bass lines that will let you lay down a groove to just about any song you would like to tackle.
If that sounds like something you would like, get the book and join us.
http://www.amazon.com/s/ref=nb_sb_no...C+Ed+Friedland