I wouldn't pay some one. Lots of tips online.
We sold last year and packed away lots of stuff we didn't need day to day and put stuff in storage. Storage place moved us so didn't cost much.
Pack most stuff away. Just leave out a few nicer items.
Fix anything broken.
Clean a lot. We had carpets cleaned and boiler serviced.
Touch up paintwork or repaint if needed.
In the lounge the fireplace was nice so I removed all photos in frames off it. Only a few nice cushions not lots. Only one or two photos.
Eg in the kitchen I packed away spare crockery, slow cooker, drawers with dd's craft stuff. Left Kettle toaster and vase of flowers on display.
Bathrooms don't have lots of half used toiletries on display maybe just one posh hand wash.
We used one bedroom as a playroom. Packed the lot and took stickers off the wall and put a double bed(off ebay) in there dressed with a nice john lewis throw (also off ebay)
Spent lots of time in garden painting fence and shed.
We had a list and worked through it - hard work but house sold quickly.