i think scifi is thriving you just need to find the smaller writers. my personal favorite (which i may be a little biased on as i develop the website for it) is neokosmos, which is about humanity within an alien context i guess? really fun, many emotions, very messy. none of the books have been finished yet but the first book is in its final draft now and will hopefully be out in a year or two! but all the drafts are free to read through their discord
https://neokosmos.space