2017 27" imac upgrade

Hi, never posted here before, but have followed along with some upgrades on different macs based on the incredibly helpful guides in this forum! I've recently aquired a base level 27", 2017 imac (3.4ghz 1TBfusion 8gb ram). I've upgraded the ram, but I would like to have faster read/write for...

Just for reference to those who want to fully upgrade their 2017 iMac and to see if it's worth it. Here are some benchmarks from my previous i5 7600k 2TB fusion drive vs upgraded i7 7700k and upgraded SSD's for comparison. Besides Benchmark tests and numbers I did some real world testing on...