One example... Copmanthorpe - a town to the south-west of the city of York.

It's not safe to assume all place names ending in "-thorpe" have Viking origins because the word was also used by tribes from North Germany (Saxons).

So there are lots of names that are thorpe but most likely not Viking but Germanic (Angle, Saxon etc)

Torp was the Viking equivalent of similar Germanic words and had the same meaning of homestead.

Most English placenames with both thorpe and Viking connections are on the east side of the middle and north of England because the Viking influences were most often there. The best places to look are Lincolnshire and Yorkshire.

Here are some arranged by county.

Lincolnshire

Scunthorpe is a town in Lincolnshire, England. Its name is pure Viking and derives from the Old Norse for Skuma's homestead.

Skellingthorpe is similar, and is pure Viking.

Others include Caythorpe.

Cleethorpes is a more recent name than Vikings.

Yorkshire

Thorpe-le-Street is a mix of Viking and Old English. The Street part means it was built on or near to an old road, most likely Roman.

Others include: Haisthorpe, Fraisthorpe, Ugthorpe, Foggathorpe (originally Fulcatorp)

A good way to tell them apart from the others is to look at modern Swedish or other Scandinavian languages and get a feel for the sound of words and names, then find similar sounding words with Thorpe as placenames.