Easy, easy, guys, going too far is just as bad as not doing anything. On the other hand, never doing anything at all, as how most Westerners refuse to do anything but otherwise, is just as bad, and ends up with genocide and ultimately war anyways.
Heres a basic idea of what we do, Romania gets an armored brigade, Bulgaria gets an armored brigade, Poland gets an armored brigade, Norway gets an armored brigade, everyone gets an armored brigade. We also put more troops in the Baltics, maybe even including armored brigades. We also look to bring Sweden and Finland into NATO, and if we cant do that we work out defense collaboration agreements with them, and we consider stationing troops in their territory. We fill the Carpathian Mountains full of anti-air, anti-missile, and anti-tank defenses. We also integrate the entire European theatre forces into full combined arms units, with combat aviation, intelligence, and air/missile defense integrated with the various combat units at the division level. We also send Ukraine medical supplies, Javelins, Stingers, M72 LAWs, NVEs, electronic equipment, mines, and other defensive equipment. We make sure that Ukraine has stockpiles of all of those in Kyiv, Kharkiv, Odessa, Dnipro, Zaporizhia, Lviv, Kryvyi Rih, Mykolaiv, and Mariupol. If Russia full out invades Ukraine then we consider moving up to the Dnieper and holding.