well it depends on what you want to focus on when it comes to playing. if you want to work on your chops, then try learning the super mario bros. theme. not too difficult but should prove to be a bit of a workout for a beginner. unfortunately the online bass tab is not 100% correct. Another option is classical. it can be a little dull at times but is also great for chops, stamina, speed etc. try learning sonata in G by Giuseppe Torelli. not extreemely fun but good practise. However it really depends on what you want to learn how to do...
for some all around fun jams perhaps learn how to play any of these-
Killing in the name, by rage against the machine
higher ground, (red hot chili peppers version)
the pot, tool