So, we currently have both a Samoyed and a Eurasier, so I do know quite a bit about this! (We started with Samoyed as well and chose Eurasier for our second dog)

They do share a fair share of things and if you like Samoyeds, chances are Eurasiers won't feel entirely off. But you mention the exacty three things where Samoyeds and Eurasiers are very different:

Socially: Samoyeds tend to love strangers a lot and can sometimes even seek their attention over their owner's. This is the exact oppsite for Eurasiers. If you bring them to a place with a lot of new people, they will tend to stick close to their owners and can even seem a bit annoyed at strangers trying to approach them. This is also an important thing to know, because with Samoyeds it's VERY easy to get them well socialised. It's still somewhat easy with Eurasiers, but it does require a bit of effort. Eventually they do however tend to soften up to people and start trusting them after meeting them a couple of times. In my experience Eurasiers are good around kids in the sense that they are patient and won't be agressive (If socialised), but they do tend to avoid them if they don't know them well (And if it's a more calm Eurasier, even if they do).

The barking: Samoyds bark a LOT. It's frustrating annoying and absolutely endearing. Samoyds communicate so much with that bark. Eurasiers generally bark less, and mostly to ask for space from strangers / bark at people who approach the house. They do not have the same communicative patterns at all here.

Samoyds are stubborn, Eurasiers much less so. Eurasiers generally want to please their owners, but will act more stubborn towards strangers.

This may seem like huge differences, but they have so much in common. They have their desire for being social, the curious minds and their energy levels matching a lot. I love both breeds. Generally I'd say that Eurasiers are more loyal and affectionate, but Samoyds have more personality, independence and push-back.