I agree with Scan, they also have a presence on Ebay, I have two of their 3xs models, one not used anymore, cannot fault them, Overclockers is another site, the other is CCL.. I used to buy Dell but stopped because they often used their own boards that made them incompatable with other upgrades.
The other thing wih Scan is mine came with all the software on a usb stick velcroed inside to allow me to reboot it back to factory if I had problems.
https://www.scan.co.uk
https://www.ebay.co.uk/sch/i.html?_n...puters&_sop=12
https://www.overclockers.co.uk/
https://www.cclonline.com/?gclid=EAI...SAAEgKigvD_BwE
https://www.ebay.co.uk/sch/i.html?_f...puters&_sop=12
I would add if you have a good case and power supply etc already, they all do bundles that are tested for you to fit. as an example but you would need a HD and graphics
https://www.scan.co.uk/3xs/configurator/3xs-z690-oc10
As said graphics cards are though the roof with chip shortages. I was lucky I bought my Asus RTX 3080TI first day and waited 4 months for delivery, but it cost me £650 ish but are now selling between £1500 to £1800 ish
but you do not need that