Working on a free-to-use online RPG soundboard, any suggestions for sounds to add?

I've always dreamed of having my own soundboard as a GM to use during our sessions, so I decided to make one myself! It’s currently a work in progress, but feel free to check it out here (works best on desktop in the Chrome browser): https://oraora.nl/GoblinGrooves/index.html

I'm looking for more inspiration for sounds to add. Are there any sounds you think would be great additions, or are essential to add?

Here are the sounds included so far:

Sound FX:

• Forest ambiance
• Cave ambiance
• Water waves
• Howling wind
• Thunder and rain
• Crackling fire
• Town ambiance
• Tavern ambiance
• Knocking
• Creaking door
• Boiling potion
• Wolf howl
• Monster growl
• Explosion
• Sword unsheathing
• Laser gun shot
• Gun shot
• Rapit fire gun
• Lighting strike
• Wilhelmscream
• Horse running
• Trumpet announcement
• Phone ringing
• Energy charge
• Sinister cackle
• Heartbeat
• Magic sparkles
• Siren

Music (3 different sets for each type):

• Calm music
• Festival music
• Battle music
• Scary music

I make sure only to use music and sounds labeled as Creative Commons 0 or free to use for non-commercial purposes.

Any suggestions for additional sounds or feedback on the website would be very welcome!