Podcasts can be good. The Guardian carries a weekly guide to the newest or go to the BBC website where you can find a complete blizzard of programmes which align with your interests. I like Laurie Taylor, Thinking Allowed, Crossing Continents, File on 4 and there's an excellent environmental one the name of which escapes me but they are organised by category. The Irish Times has an excellent current affairs podcast and also a Women's podcast with a wide remit.
I'm sure there will be lots of recommendations of the U3A. I do courses with Future Learn online, these are free short courses provided by various universities. If you Google MOOC courses, you'll find that there are a lot of providers. You can study at your own pace (most require 2-5 hours a week) and there are usually lively forums if you want to join.
As to publications, I don't really have time to sit down and read lots of words but I buy New Statesman or Private Eye occasionally and like their reporting of things not automatically'front page'. My husband likes Twitter which I struggle with but I can see that if you can find a few politicians or public figures who are of interest, it is quite interesting to see what's key at the moment.
Good luck though. I'm not interested in clothes or shopping or make up or tales of other people's grandchildren told ad nauseam and I often feel like an alien in British society!!! Maybe we need a serious thread that bans the argumentative who so quickly descend into opinionated slagging off! 