Norway, Sweden, or Finland for January Northern Lights?

Hi everyone, I am planning for a trip to see the Northern Lights in early January next year, and I am debating which country to choose for a 3-4 nights trip. I have not been to any of these countries before, so I would love to hear your thoughts.

Right now, I am debating between Oslo and Tromsø or Abisko and Rovaniemi. However, it looks like it may be a bit difficult to get to Abisko since there are no direct flights from Stockholm, and the train ride seems quite long.

I will be flying from Paris and will need to head to Austria after spending 3 nights in one of these destinations. Which option would be the best for my itinerary and for maximizing my chances of seeing the Northern Lights?

Thank you in advance!