FT and, as a right-of-centre person, the Guardian (Guardian is "lefty").

It's a trick a friend recommended to me once. Reading a paper that aligns with what you believe anyway doesn't challenge you and merely reinforces your biases. I might roll my eyes on some stuff in the Guardian but that's better than just feeding myself whatever I think already.

Plus, in the UK, the default conservative paper, The Telegraph, seems to be tabloidising and click-bait-ising itself at breakneck pace. Whenever I see a link to it, it's all about how foreign immigrants steal our jobs, overwhelm public services and give us cancer, while Communist Labour is introducing gulags, where salt of the earth Brits are forced to put pronouns in email signatures.

FT has a clear finance/econ bias but is a damn good newspaper apart from that. I find it staying far from directional biases but delivering insightful information.

The Guardian really can't be considered left of centre these days, they're basically just the PR wing of "Blue Labour", and even the not "blue" part of Labour is free-market right of centre. If you really want to know what us lefties are thinking, try The Canary (which happens to be one of the newspapers I pay for too). https://www.thecanary.co