Yeah you can’t run off a bad diet, you do need to make sure you are getting enough protein aligned with your goals, and some fats, but outside of that, you just need to eat less than you burn.
Running might help increase the deficit a bit, or give you some extra food, but you’re probably going to struggle to cover thousands of additional calories.
I’m not sure supplements are ever fun … but they can help with getting enough protein if you’re lifting or an additional energy boost via creatine … protein powder can taste nice but you need to watch out for macros if it’s too delicious, I’ve never had a nice creatine.
Or by fun do you mean preworkouts? I think there’s limits to preworkout value when what you really need for workout energy are easily digestible carbs over caffine or other cruft.