Hey my name is Seeker and I'm building a pc for unreal engine/gaming

I’m building a PC because my laptop won’t let me download Unreal Engine, even though it would be better for me that way. However, I want something for gaming and game development, and I’d love to do YouTube for both. So, I wanted to show you my future setup and ask any questions. The processor is an Intel Core i5-12600KF 3.7 GHz 10-Core Processor, and the GPU is an RTS 4070 Pyny (I’m not sure how to spell that). I recently purchased WD Black SNS770 1TB, however utilizing the Unreal Engine would require more room.

so I was thinking should I get two teamgroup Internal Solid State Drive SSD, and two seagates. those four would be 2tb so that would be eight tb or should I just get the two team group ssd’s so it would be five tb.

Well you definitely don’t want to store anything that Unreal uses on HDD because loading times will be obnoxious. HDD’s would be great as an archive for large files, like video, but again, working on SSD’s are preferable.
Oh, and make 2TB m.2 your system drive, it will be really useful.