Football finance guru Kieran Maguire praises Portsmouth's 'sustainable' approach to the Championship. Some teams like Bristol City have spent big and got nowhere in what Maguire calls 'the most bonkers division' in world football: https://www.portsmouth.co.uk/sport/football/portsmouth-fc/portsmouth-fc-finances-championship-kieran-maguire-expert
A rare in depth look at the finances of a Scottish football club, Dundee FC (not to be confused with overlapping neighbours Dundee United: https://www.thecourier.co.uk/fp/sport/football/dundee-fc/5265494/dundee-fc-finances-history/ Unsurprisingly, it is a loss making business but some potentially useful numbers are not available. The club has a new stadium project at Camperdown Park. Near neighbours Dundee United have an American owner who has invested £13m and were on the cusp of being profitable: https://www.thecourier.co.uk/fp/sport/football/dundee-united/5265287/dundee-united-finances-history/