What sort of battle are you thinking of?
Bugbear Battle can cover most human and humanoid battles, big or small.
Red Dragon City Raid has a lot of good dragon/breath weapon sounds.
For a fight with a large animal, Tiger Battle covers anything big and predatory (tiger, bear, etc). Also comes with jungle sounds, so bonus!
If you intent for your players to fight anything mechanical, Clockwork Entities is great for that.
Undead Battle for anything that won’t stay in the grave.
For something smaller, Goblin Battle, Kobold Lair, or Giant Rat Battle would work. Goblin Battle includes explosions, Kobold Lair includes additional trap sounds, and Giant Rat Battle includes a creepy abandoned building.
Several generic battle and spell sounds are included as the universal one-shots, so those should cover most of what you’re likely to meet!