@WILD:
Welcome to AA.org, but I’m surprised that you are having trouble finding strategies on this site. You should look up some of Young Grasshopper’s u-tube videos, he has some pretty awesome “essays”.
Unfortunately, YG removed almost all of his content a few months ago, including his G40 strategies. So you won’t find much strategy content there. However, I can recommend Siredblood, GeneralHandGrenade, Hunter Jones, Variance Axis and Allies for good strategy content. (That list is by no means all the A&A channels, there are many more good, albeit smaller, channels that you can look for)
On the OP’s strategy, I don’t see a reason to place a mIC in Finland considering you generally get one in Leningrad one or two turns later that is both free and closer to Moscow. And if the Russians decide to stack in Leningrad, no big deal you just go round them and force them to retreat, otherwise they lose their capital. Leningrad is a bad spot to retreat from if you’re Russia (it’s 3 spaces to Moscow as opposed to 2 from Belarus, Western Ukraine, and even the factory in Ukraine itself) so it would be rare to see the majority of the Russian army in Leningrad as Germany starts its advance into the USSR.
With Paris, I would much rather use my planes against the British Navy than risk AA fire in a place I’m gonna take without my planes anyway. The Paris battle is upwards of 95% in favor of Germany if they send every ground unit in range to Paris and no planes. Even if you’re being a little greedy and you’re going for southern France or Normandy at the same time you will still take Paris 9 out of 10 times without planes.