I posted this map quite a while ago, but recently revisited it because it felt unfinished to me. Basically the premise is both a less aggressive Christian expansionism into northern Europe, and a more successful Viking Age that lasted longer. The year of the map is about 1740, and shows a very different world.
The Danelaw in England (and later Scotland, and later Ireland) evolved into an independent state (the Kingdom of Jorvik) that began expanding in its own right. While a minor Kingdom of Wessex still exists (in vassalage to the Empire of Francia - Charlemagne-esque but only recently grown to its current size), the majority of Britain is firmly under the rule of the old gods. Meanwhile, the Welsh peoples managed to unite into an independent Kingdom of Cymru, which is a unique blend of both Celtic Pagan and Christianity.
As for Norse Paganism, the old ways still reign supreme, albeit in very different ways. 'Raids' now are more calculate and less arrogant than they once were. They are more about collecting slaves than hoarding wealth, less about seizing land than they once were. The Realm of Vinland is the strongest of the north American (obviously not called America ITTL, but bear with me) colonies, and the only 'independent' one. The few Vinlanders that can still travel to Uppsala every nine years to pay homage to the gods, and they are still subjects of the Danish king. Denmark itself still holds onto their colony north of Vinland, which is still too cold and underpopulated to really be considered 'independent'. This colony is called Markland.
Elsewhere, the Portuguese have been the successful conquerors of the Americas. Although their approach has been far less aggressive than that of the Spanish in OTL, mostly due to a lack of manpower in order to fully overwhelm the natives of their colonies. The Portuguese colonies are divided into 'Provincias' ruled by local governors, and 'Colonias' ruled by the military. Intermarrying with the locals is common, though conversion to Christianity hasn't been nearly as successful as it was in OTL. In fact, in the Aztec and Maya vassal states, where Portuguese control is fairly nominal, the old ways are still followed, although human sacrifice in these lands has lessenned every decade. Meanwhile, down south, the Inca of Tawantinsuyu proved too much of a match for the Portuguese, who traded access from north to south (and vice versa) for weaponry, medicines, and protection.
Islam, like Christianity, was a lot less aggressive ITTL as well. It never made it into Anatolia, where Rome still rules, and in fact the Turks ended up settling in Persia. Here the 'Ottoman Empire' holds vassalage over many minor kingdoms. In Arabia, the tribes of the desert have banded together under a 'High King' of sorts to better defend against both the Turkish spread into the Levant and the Christians in North Africa and Egypt. Likewise, the Kazakhs of the steppes have done much the same thing faced with a rapidly eastward-expanding Ukrainian empire constantly at odds with Pagan Novgorod.
In the east, the Mongols managed to create a long-lasting empire: multiple invasions and partially successful conquests have led to a fractured China. To the south is one of the Chinese Empires, which turned away from the mainland and towards the sea, conquering and assimilating (largely) the Philippines, Ryuku Islands, and Nam Viet. In the northeast, another Chinese Empire lives in near vassalage to Mongols, while dominating the centre is something of a peasant-warlord state as close to communism as one can get in the 18th Century. Japan also turned away from the continent and now holds a thriving colony on the western American coast.
As for Europe as a whole, attempted crusades have happened, but a surprisingly effective alliance between Jorvik, Norway, Denmark-Saxony, Sweden and Norway have kept the Christians at bay. Francia instead turned its attention south with ambitions to turn their North African 'empire' into a full-blown colony one day. They're also the dominant power in India and the east Indies, whereas the Pagans are more interested in trade in the east.
Any questions feel free to ask. Here be the map, as I said, set in about 1740 CE.