If you don't have one, or your PC is a bit older, you can still find a great deal on a SATA SSD. These are slower than NVMe drives but they're still a huge improvement on a traditional hard drive.
This drive was our top recommendation for best high capacity SSD for a long time but it's very hard to find in stores and seems to have been replaced by the DRAM-less NEM-PAB version. If you can ...