There is many i can think of. Berggren, Ylonen, Wilde, Thomas feels like first round players to me. Shafigullin i do not really understand why he was píck in the 3 round. Gruden, Fonstad, Kovalenko, wise, Nordgren, i think is worth mention as well. Wahlstrom and zadina is to me the biggest steals among the top drafted.
I have not seen much of him, but i like what i saw, Kivenmäki, same goes for Der-Arguchintsev, he seems to have alot of talent much more than the numbers show, but he is small ofc.
Do not think there is any big difference between F Johansson that goes in the first round and Ragnarsson going in the 3 round. I much rather spend a 3 round pick on Ragnarsson than a 1 round pick on F Johansson easily.
From what i have seen, a personal favorite is Perunovich, he is maybe not so underrated in the draft consider he is 2 years older. But I would have him top 3 in the draft if he would not have been overrage, but now he is so...
If i had to pick one, it would be Berggren. I think he can be a good one.