Unfortunately, if we do not want to have a direct conflict with Russia, the next best thing is giving Ukraine massive amounts of weapons, arms, etc., and enabling them to retake their country.
Any alternative that allows Russian gains will only further cement the idea that wars of aggression can be worthwhile in the modern world, and this is the most horrendous conclusion possible for anyone actually anti-war.
The West has provided hundreds of billions of dollars in weapons and money, yet the Ukranians have made near-zero progress. They are incapable of retaking their country without direct intervention from NATO, which is not an option.
Any alternative that allows Russian gains will only further cement the idea that wars of aggression can be worthwhile in the modern world, and this is the most horrendous conclusion possible for anyone actually anti-war.