First, you would need to be established and be able to provide a build like never seen before.

Next, you would need to click the link below and convince EVGA you will be able to build something like never before.

https://www.evga.com/gearup/

Aside from that, I would suggest just building your own PC, because manufacturers aren’t into giving out hardware without a really good reason and a large audience to convince the followers to pick their hardware.

Take a look at the gearup with EVGA builds. Can you compete with them, and do you have the resources for laser cutting and making one off cases? If so, put in an application and design sketch.

Make it before you fake it. If you build it (the computer, the audience, and so forth) EVGA will notice. EVGA investing in you from the get-go in order to build your computer and audience? Unlikely.

I submitted my request, it does not hurt to try and you gotta start somewhere. Here is my last build I did on my own. https://builds.gg/builds/showtime-15476
 

That's too bad, this is a great forum to interact and get help with pc issues. Looking forward to many more evga years in my builds

to even be thought of about getting sponsorship is hard.  
I my self tryed to do the same thing back in 1999.
I was told many time by companies, they wanted to know how many years i been doing videos, who all have i done, how many times have i paid for my own stuff , how many builds have i done, how many times have showed my build, how many times have i done a video about unboxing, ect ect ect .. but the one question they all have asked is How many years have i been doing this .. 
my answer to most of those questions was 0 or just started .. 
 
So i gave up, after about three years of trying ..
So to get companies now is really freakin hard, unless you been doing youtube videos for YEARS and been building and showing your builds at local area computer shows, ect ect... sometimes you might get lucky and find a company that is just starting out and willing to take a chance to show people there product .. 

ty_ger07
Make it before you fake it. If you build it (the computer, the audience, and so forth) EVGA will notice. EVGA investing in you from the get-go in order to build your computer and audience? Unlikely.

Don't you mean fake it until you  make it?
 
As in, Invest $$ into yourself as if you had a sponsor, so that they see you and actually sponsor you? lol

"fake it til you make it" should be read as "try until you succeed" not "lie until someone believes you" although it may be easier to read it as the latter.
(if you are trying to tell convincing lies however... I'm not sure how that works, maybe both apply? Though you have to render yourself immune to gaining a reputation until you get good at it and... ah nevermind, I don't really know how to go about being a pro liar ... or do I?)