I’m really struggling with peripherals…

Hi, new to pc building and all.. Got a ton of great help, in putting together all the parts for my PC. (https://uk.pcpartpicker.com/list/gNdJWc)

Now it’s a case of matching the peripherals to go with it, both in terms of colour, and specs. And I’m finding it tough. Both because I don’t know nearly enough about pcs, and because I’ve not got much help in this.

I need good specs, for kbm+headphones and speakers, that match the aesthetic of my build. And then a good pad. Any damn help whatsoever is welcome!