As a fellow newbie to this sight, of only a few days, may ask some questions here as well?
1- Is there anything in particular anyone would recommend to get your story noticed?
2- how do you put pictures in your chapter?
The best way to get readers is by the front page of Scribblehub. As simple as that.
Release regularly and release with quality; make a catchy cover and a title that draws attention; include the appropriate tags/genres that fit your story those are the main things you can do to get your story noticed.
Other things include putting your story on your signature and trying to manually advertise them in other places, like relevant subreddits and whatnot. But Scribblehub's front page is still the best form of getting noticed by a large margin.
Also! 1 more question out of academic curiosity. On the topic of "smutty gender bender litRPG isekai harem" being the most popular, why is it that male to female GB is everywhere but I haven't found a single example of the reverse?
In general, at least in weeb-related communities (which Scribblehub is totally a part of), MtF is a lot more popular than FtM.
The reasons for this may vary a lot... I personally think that this is just the current trend and it might shift with time or remain the same, but I have seen people arguing that there is a stigma of FtM gender bender being too fetishy or whatever... Seemed like a dumb argument to me, but I heard it before.
Either way, you can try reading this for more opinions on the matter:
https://forum.scribblehub.com/threads/why-so-few-female-to-male-gender-benders.5217/