Our tabloids are notoriously awful. In America they don't really care about written news, but have some good ones, but have mental, popular TV news. In the UK we're the opposite.
Quick guide.
The Mail is the right wing nutcase paper for the wives of bankers and small village entrepreneurs who think they're better than everyone and deserve it. It specialises in scaremongering about the ill effects of liberal causes, the poor and foreigners. It thinks Britain was at it's best in the 1950s. Has a schizophrenic attitude to young girls, which it demonstrates by demonising anyone with any remote connection sexually to them, whilst constantly printing glossy sexploitation stories about the newly turned 16 daughters of celebrities. Notoriously supported both Hitler & British Fascism back in the day.
The Express is the Mail for people who think the Mail is too globally focused and aimed at people who live in small villages who aren't entrepreneurs and don't read the Mail. It hates everything that isn't British, loves the royals more than anyone, and thinks that Britain was better off in the 1950s and bits of the 1890s when we still had an empire. It thinks the EU is evil and trying to poison us all.
The Sun is the right wing nutcase paper for Working Class scafolders who like tits and their news based on people who've ended up in A&E setting fire to their own farts. Over the last decade it's followed the Mail (and then some) in focusing on gossip and reality TV to the point where almost every front page will be about non-celebs, soap stars or what was on TV last night. Has schizophrenia about scrounging working class types and scaremongers about everything the Mail does, whilst being aimed at and bought by the very same people it's scaremongering about. It thinks Britain was at it's best in the 1970s when misogynist jokes, sex comedies and light racist banter were the pinnacle of culture. It will nevertheless also witch hunt people for any misogyny or light racism, whilst also excusing it in it's editorial pages. It's the biggest selling paper in the country. Kill me.
The Star is The Sun for people who think The Sun has too much news in it. 400% of it's stories are made up and it's engaged in a permanent competition with itself to invent the most
eyecathingly ridiculous made up front page headlines.
The Mirror is (or was) the left wing nutcase counter part paper to The Sun, with just as much made up bollocks and celebrity gossip only without the schizophrenia of hating the Working Class. Since Piers Morgan's tenure it's basically just been The Sun, only taking deliberately contrary positions to it.
All of these sell more than any broadsheet.
The Independent & The Times have (relatively) recently turned tabloid, but only in format. They're still ostensibly actual newspapers.