I would see a label as likley minded artists - so you get other musicans in your network, which do the sound you like. When i think of the “Iboga” sound, than there are a lot of similar artists which eventually shape a genere.
I would check out what there is locally, nothing beats contacts from your area. If you´re area does not feature the music you like - then move to that area which does.
From my area a lot of musicans in the psytrance genere moved to hamburg, because its the most active scene for that type of music. I think its somewhat sad, because it depraves the local area from that sound.
So i would vote for creating your scene - if its possible. Yes its more stress as you need to convince local authoritys if you want to rent public space - but its doable. I organized a punk concert in my area, and allthough it was a lot of work - it was very rewarding.
Start small, and if you earn something invest it again in the venue.
I thought recently about coupling it with other interests, i.e. animal rights, and do somehting which is benefical not only to you. It may be that the authoritys may be sharing your interests, and that if you do a benefic style venue - you create change for your local enviroment, and also interest an audience which would like to support the good thing.
(Animal rights is an example - insert your topic where you would like to see improvements.)
Probably it would also an idea, to do provide a jamming area, at first without audience, just for musicans who like to meet up, the audience is optinal. If that continues for a while i belive the audience will come automatically. (continuity will help.)