Well, running would attract dogs, especially if they are stray and hungry. The normal instinct of a predator is to attack fleeing game. Pepper spray, a collapsible baton or a shock stick, might all be options for four legged and even two legged predators.
Best advice? Do not run at night if possible, but if you have to, then make sure you have something for self defense. A flashlight would help you feel better, but unless you intend to use it as a baton, then it’s not any help, except to illuminate your way.
Super bright flashlights will hurt your night vision, as well as anyone or anything around you, so possibly a light that had less lumens and a more floody light, might actually be better, as it won’t hurt night vision as much.
Lights for jogging and trail runners have been discussed before. Try searching here for “jogging light” or “trail light”. Anyhow, here’s a link to one of these threads. It might help.