I know it’s a suspension problem I don’t want to be buying parts?

When I’m driving over bumps and uneven roads it’s knocks loud almost like a rattle as well but if the road is level the sound dies down but still there but barely when I turn it makes noise only if I hit a bump just like it sounds pretty much all the time but nothing to say it’s the CV joint no clicking of that nature I was told it may be the sway bar link/strut and or strut mount to me but don’t really know I hope you can help before I get to buy things with the little info you have can you help plz. Last thing is there all guide of some sort to walk me through in replacing whichever part is believed to be broken