a few questions i have about streaming lol

hey everyone! i want to get into twitch streaming soon but have a few questions if anyone could help! just gonna bullet point them lol

-is there any equipment for lack of a better word that’s pretty much essential?

-do you think uploading vods or stream highlights of yt is essential or at least helpful in growing

-are there any random tips you have

and this one isn’t exactly a question but i need some help with designing a screen character/pfp lol

my user across all my social media is “unnbrannded” pretty much so as you can imagine it’s hard to come up with a brand when the you’re wholeass unbranded

it’d be much appreciated for any answers or if you can help with any ideas on that pfp! thanks!