Selling site

The British Heart Foundation will come and remove furniture or other items they can sell in their charity shops, they can also clear a house (though they may charge a fee for that).

We used them to help clear my parents house (in London) after my my mother died. As the furniture was so good they charged nothing.

They also cleared my sisters house (in Scotland) when she died though they did charge a fee. But to be fair they did take everything in the house.

They have many charity shops so see if there is one near you that you can contact.

In the same boat.
You can easily sell tech like a TV on marketplace but less searched items require a national audience and therefore postage. It is an effort but don't expect your buyers to all be local and desperate for old items. You need to consider your target market.

eBay local pickup or carboot sale, also Facebook local group are the best options.

Gumtree is a well known free site as well...but make sure you add plenty of photos of everything.

Ebay ....collection only.....although their final value fees reduction doesnt appear to have materialised today

we had some Herman Miller office chairs to sell over the past month (collection only) and I would say interest has come Ebay/Facebook Marketplace/Gumtree in that order...

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Plus ....

1/If you have furniture items in good condition (with firetickets where appropriate) British Heart Foundation and other charities may offer van collections from your late fathers house.

2/ Your local council may work with a local furniture/clothing recycling charity that will collect.
Theyll usually come to the house and see what they want

eg Too Good to Waste in Rhondda Cynon Taff

I'm in the opposite position and from experience I can say it is absolutely a buyer's market. I have stuff in my house which I got for peanuts because I happened to live close enough and have a big enough car to collect. You've got the nail on the head with regards to the delivery charges, the truth is that if there isn't someone within twenty or thirty miles of you who wants said item and can arrange transport, you are going to struggle to sell it. Only other thing I can suggest is getting a local auctioneer in to take a look at a job lot. Don't expect to make a lot of money though.

Why don't you look for a local auction house that does house clearance type stuff, they'll remove it, put it into lots, sell to national audience. You pay a commission but then they take a lot of the hassle out.

You can host an Estate Sale?

If you don't mind people coming in to wander around. People can pay in cash and take it there and then. Post an ad in your local paper and you'll get rid of anything with value as resellers will come.

Vinted is very easy to use - Facebook is the best place to advertise if you dont fancy posting items