Hi! Suggestions for wordpress plugins (i need)

hello, sorry for title.

First of all how i can hide this bar

In our country, we do not have a site where we can share a poem, I do not write poetry, but I love to read.
I want to make a simple platform where people can share their poems, drawings and music they make.

I found Youzify plugins for profile, and i think this is very good.

So i dont know wordpress plugins. Please help me for find good plugins.

I need Elementor Pro Core plugin (thats u can see how i noob)
and need plugins that will be nice for this site idea

thanks hocam

yes there is and i know more similiar website, but I plan it to have a more modern interface and to be aimed at young people.