there are a million of them out there, i just got done researching them and buying one for my son. they seem to range from arond $49 to over $250
for simplicity (no batteries, no biometic) this one is pretty simple and rugged. easy to access in the dark by feel. mechanical combo. two for one sale $169
https://stopboxusa.com/products/stopbox-pro-bogo-offer
for something less expensive (chinese) i just bought this one for my son around $69
https://billconch.com/products/bill...akroom-living-room-bedroom-nightstand-and-car
not super high end, but seems rugged enough and works well with fingerprint/combo/key and has a cable lanyard. pretty quick access with fingerprint
i'm sure there are much better ones out there but I was just looking for something to keep the gun out of curious hands and keep it relatively accessible.