Dexx> Alpha Centaury (our nearest stellar neighbour) is too small to go supernova. Sirius hot and big enough, but it’s not near the end of it’s life. Look for red supergiants.
So no worries. None are set to happen in our galactic vicinity. It would be cool with one close- by, though. Those things shine so brightly there wouldn’t be any night for weeks…
Of course, the following radiation might not be so… cool.
But you should be able to see at least one in your lifetime. They happen three times a century in the Milkyway, so depending on the distance, the light from one could appear anytime. The astronomers are monitoring some far away, too faint for us to see them, some in other galaxies, some of the three Milkyway ones may occur at the other end of the galaxy.
You can keep track of the known ones here http://www.rochesterastronomy.org/snimages/ while they last.
They’re immensely bright. The famous 1987-one on the pic below is in ANOTHER Galaxy.