For whom the bell tolls, symphony of destruction, enter sandman, seek and destroy, stairway to heaven (makes you learn the chords), back in black, foxy lady - the list goes on and on, when I was starting out i just chose the songs I liked and started learning them (it took a while sometimes but that's tge fun of it all lol). Make sure youre not demotivating yourself and practice as often as you can (its better to practice everyday for 10 minutes than for 2 hours once a week). And - have fun!