The Rangers will draft at #15 in the 2021 NHL Draft. Lightning did not strike for a third year in a row, and they did not win the draft lottery this year. That is perfectly ok, as while there is no consensus top overall pick, the draft does have a lot of good mid-round talent.
Even without winning the lottery, the Rangers are still in a great spot. They have some solid talent coming over this year, and if they make the pick, will likely get another great prospect to add to the pool.