How to make this wave with harmony?

[Dr. ROX]

I'm trying to create this sound using oscillators as I only have it's wave. It's actually the 64'th wave from Dune synth. But when it goes to the lows, it starts to sound bit muddy so I want to make it oscillable.

Here is the sound:
https://soundcloud.com/dr-rox-1/saw-wave-with-harmony

What I'm hearing is root tone and +5 but if I take few oscillators and tune them to root and +5 the sound gets very dense and this one sounds more sparse if it's describable like this. Trying to add some ring modulation to the signal made it a bit more like it but still not exact.
Maybe you will have some ideas how to design this?

[Ah_Dziz]

I'm trying to create this sound using oscillators as I only have it's wave. It's actually the 64'th wave from Dune synth. But when it goes to the lows, it starts to sound bit muddy so I want to make it oscillable.

Here is the sound:
https://soundcloud.com/dr-rox-1/saw-wave-with-harmony

What I'm hearing is root tone and +5 but if I take few oscillators and tune them to root and +5 the sound gets very dense and this one sounds more sparse if it's describable like this. Trying to add some ring modulation to the signal made it a bit more like it but still not exact.
Maybe you will have some ideas how to design this?

Use only 2 saw oscillators. one at root one a fifth up. Then play c d# f. If it isn't tight enough then play with the fine tuning of the fifth. There is not much more going on there. you could put a sub oscillator underneath for additional thickness. Then adjust mixing to taste.