Need a Good Build

Hey,
I´m new in Path of Exile and started playing a Marauder as a second char. I dont want to delete my Marauder soon (i f*cked up my skills in my first char) so i decided to search for a good build, but every build i found requires legendary gear. Im in the first town and dont know where i should get this gear. I have a little amount of gems but i dont really know what should i play. Maybe there are some Marauder experts in this Community who can suggest me some beginner friendly builds.