I want to add memory to the laptop HP Pavilion 15-N208TX, but I donít know which one to choose?

HP Pavilion 15-N208TX (F6C48PA) laptops specifications

I'm looking for a 8GB module, and the laptop allows me to do this: 2 slots SODIMM
it has a free slot, and you can increase the memory up to: 12 GB

which 8gb module can be installed and will it work correctly with the 4gb module ?