Here are the majority of the ships i have (reminder: i am a multishipper):
P.s. I'll describe the position dynamic.
Britain x France: Britain is the top because we all know France can't top. The Britain probably acts like a top and jokes around at the subject but in reality, turns out to be a hardcore brat tamer and makes France realise how kinky they both are. I mean, come on, Britain makes everyone their bitch.
Germany x Poland: Poland is always submissive guys-. Also, Poland may be a really submissive little or a pet, because they never brat and give "UwU" vibes.
Canada x USA: The US of A is submissive and Canada would tame them, both extremely kinky in the bed.
Russia x USA: Russia's a brat tamer and USA is a brat but turns submissive as soon as it's faced with punishment-. Also, both veRY into tHe KINKY.
Canada x Ukraine: Ukraine is probably really submissive, maybe a pet-? And Canada wouldn't be too strict either but rather a soft, fun dom.
Russia x Canada: Canada would probably be a real brat bottom in this, not going to lie, especially since Russia is a brat tamer.
Finland x Estonia: I feel like they would both be demisexual and Finland would be a soft dom and Estonia would be shy at first.
Russia x Poland: It's more of a rarepair but i still ship. Poland would be extremely submissive and had experience before which confuses Russia as Russia also has ExPeRiEnCe. Conclusion: both turn out to be kinky and it becomes a dom/sub relationship after having tHe talk.
Sweden x Finland: Both would be switches, not even going to lie, maybe Finland might lean a lil bottom but they always fight for dominance.