Origin used to have decent laptops (I have one of their laptops I use now). But since I purchased the laptop, they were bought by Corsair. I am not sure how good they continue to be, but if they are like they were, they make a good rig.
If you are looking for a pre-built gaming system, that's one of the places I would start. The BIGGEST problem is that you will need to pick options. There are just too many choices out there for a gaming system, and buying "off the shelf" from places like best buy or other mega-retailers going to lead to disappointment.
How much do you want to spend? Very best available can be VERY expensive (more than 5 digits) It all depends
Are you Intel, AMD, or agnostic? NVidia, AMD, or agnostic?
Those two choices drive a lot of what you will get.
Also, what type of monitors? ultra widescreen, normal 4k, 1440, or 1080? How many? The more pixels you drive, the more video card and video memory you need
For instance, if you want a computer TODAY, I would go with AMD and get one that supports PCI.e 4.0. If you want to wait a few months, Intel Rocketlake should have that tech. If you are going with an AMD processor, you might consider an AMD video card. Both have great performance, but getting a video card might be a bit tricky.
Note, I have NEVER purchased an AMD, but one of the reasons is that they can be very...temperamental with their drivers, or at least they used to be. If they have that under control, there is no reason not to get one. ( I will let those with more experience answer that)
Get at least 1 m.2 drive where you place SC and other games. I personally run 2 M.2 drives on my system, and my current build (still waiting on a processor/MB choice) is going to run 2 - 2 TB M.2 drives. Drive technology choices can have a significant impact on your computer performance. Like many electronics, you are limited by your weakest link. Spend a bunch on a great 4k Blu-Ray player, but have a really bad receiver or an HD TV, and you will be limited on what you get out of that player. The same applies to processors, video cards, ram, motherboards, and even power supplies.
I would choose 64 GB on 2 stick of memory, and 4 memory slots on the MB, giving you 128 GB of potential RAM 3 or so years down the road, no matter which processor/video card you get. Don't get 64 on 4 sticks as that's just a waste of money when you upgrade later.
Are you overclocking, or playing it stock? If you want to OC, make sure the MB has a good power section.
Speaking of power, make sure your power supply can handle all that.
Sorry for the long response
TL;DR
https://www.originpc.com/