Any Mac Pro tower prior to the 'trashcan' model which came out in 2013 and ran up to 2019 , when the horrendously expensive new Mac Pros came out : just for a laugh , I configured one on the Apple website , with every option and it was around seventy grand !!! That's Pounds , not Dollars .
See link below , the machines I have are all between 2008 and 2012 , although I do also have a 2004 Powermac G5 , which looks very similar , and a number of MacBooks and MacBook Pros as well .
www.thebookyard.com