I really, really, really hope that we see NHL players in 2022 Olympics. It has been too long since the last time.
My Finnish roster is pretty much like everyone else's but I try to spread the talent a bit.
Donskoi-Barkov-Laine
Teräväinen-Aho-Rantanen
Kakko-Hintz-Granlund
Kapanen-Haula-Armia
Lehkonen/Kotkaniemi
Lindell-Ristolainen
Heiskanen-Jokiharju
Määttä-Vatanen
Välimäki
Rask
Koskinen
Raanta
Barkov, Aho, Laine, Teräväinen and Rantanen are stars but after them is a drop in talent. I put Donskoi on the top line to bring speed and he is a good complimentary player who can score with more talented players. Barkov and Laine are buddies and should play together as should Teräväinen and Aho. I like putting Rantanen with the Carolina duo and I think this line would play the most on even strength. I am not sure if that 3rd line would work and we have to see how Kakko continues to develop but I like Hintz-Kakko as an idea, both big bodies and they have scoring and playmaking abilities while Granlund does as well and he can be "the adult" on that line and cover for them. 4th line I like as it has a bit of everything but none of those guys are stars yet they would be annoying to play against.
The defence was quite easy to make, I think Jokiharju is going to be terrific and should be capable for top 4 duties. He can play smart together with Heiskanen and Lindell will cover Ristolainen. Bottom pairing currently has the JYP boys but it could be different depending on how players continue to develop. There are a bunch of Finnish defensemen who are about to break through (Niku, Välimäki, Heinola, Mikkola, Vaakanainen) and they could be competing for a spot in this team.
Rask currently is the top goalie for Finland but obviously the situation could be different in 2022 if he goes down like Rinne. The goalie spots will be filled by the hottest goalies but Finns need to get younger goalies into the league and fast.