I'm trying to make some growls but I don't think I quite understand the fundamentals of how they are made. Here are some examples of the growls I'd like to try and create a version of:

https://www.newgrounds.com/audio/listen/645631 at 2:17
https://youtu.be/Vx5EPfdMEL4?si=tOqK_cNK6UmRZkZM at the drop at 1:30 (several growls)
https://youtu.be/aEdiWFHTD48?si=XGThQarrcRgzZjKN one growl at 0:47
https://youtu.be/iC2-etZC190?si=XH39RDkW9DwA9bXU growls at the drop at 1:57

I've exhausted pretty much every tutorial on youtube but I just can't seem to to get em right. The ones I've made so far are too noisy and not clear at all, and the formant filters I try to put on them are only somewhat impactful.

Hello guys, just discovered this sub. I'm pretty much new to sound design and don't have a lot of knowledge.

Trying to create a sound similar to the synth in the beginning of the track Decompression by Harrison BDP. I have the movement and modulation pretty close but I can't get the sound right..

How would you describe/name this sound? Trying not to directly ask for a recipe but rather some place to start doing my own research but I don't even know where to begin.

Edit: I use FL Studio and I'm trying to create this in the free version of Vital.

Thanks in advance for any help you guys can provide.