One thing I've noticed when writing a request thread is potential partners I've had really enjoy a little intro. Nothing big, just who I am and what I expect. I get that out of the way because I don't want to waste my time or their time if we just do not click.
I also noticed that some just want fleshed out plots. It takes a lot of time to write a plot with someone, and it's easy to get distracted. Detailing plots out with what you want will nix out any unnecessary miscommunication and frustration.
of course, you're more than welcome to simply put out a thread looking for those who already have fleshed out plots.
When I created my thread I put graphics. I find that that shows my personality, it attracts attention and it is also a conversation starter. Some potential partners I've seen here have used gifs, or pixel animations that look soooo good!
( some applications I enjoy using for this process is: Procreate, Sketchbook, Pics art, Adobe mix, Giphy)
Another thing I also noticed people really enjoy when I include my roleplaying schedule. currently, I'm on hiatus, and I put that in my updated thread, and instead of plot suggestions, I've been getting casual conversation PM's which is wonderful. It really helps you get to know potential partners and also develop some neat onsite friends (if that is your thing).
Overall, make the thread an Extention of you. You seem bubbly person, so let people see that side of you while putting what you would enjoy out of your story weaving and partners!
Good luck!