What would be the best way to reduce low frequency noise coming from neighbour above in apartment
The first thing working against you is that bass is the hardest frequency to dampen. With a wide wavelength, they travel further and induce vibrations in large objects. In short, the usual egg crate foam isn't enough.

The good news is that these are often custom built when created, and a simple Google search for bass traps will yield plenty of instructional details. Most of these are meant for isolating bass within the room that it is generated in. How much success you'll have isolating it in your room will be interesting.

I'd personally start with the top tri-corners of the room, and perhaps the ceiling.

Other options are to try and get the neighbor to install that kind of dampening in his apartment, or to use one of these on the ceiling: