I genuinely want to support them. I also know a few people looking for an oshi.
Only found one so far, she definitely ticks the right boxes of
1. Enjoys streaming
2. Enjoys doing GFE
3. Enjoys and desires to emotionally connect with her audience
4. Avoids male collabs
5. Explicitly promises to not have a boyfriend
She is the only one I've found and I've already thrown around $150 her way and promoted her as hard as I could in social media and my circles

I see supporting GFE as an investment in making sure it always has a space in this hobby. Generally speaking being a GFE chuuba should, in part, be part of it's own reward in terms of content style choice, but obviously keeping it/making it lucrative and popular helps prevent social stigma against girls who might otherwise want to give it a try(generally girls who would do real GFE tend towards being shy and more prone to kneeling to social pressure, so breaking down the shame factor unironically helps more people both do and find the content they want)

I want to create a world where well meaning anime girls have virtual harems of weebs who use her as a means of reforming their lives into being as chad as possible