All my vape pens have either been lost or stopped working. I thought I found a good one in the omicron V4, but it went out on me this weekend after only a couple months of use. I finally just got one of those gold drop pens and a few cartridges. Kind of expensive, but they last if you're not constantly taking rips
With these pens the failure point is always the battery, so the best thing to do is use a device with a removable battery, then you just swap in swap out as needed or when one battery dies, then recharge it. The life cycle for the batteries becomes significantly longer, and they're much better batteries. A pen with an internal battery might fail for something as simple as the soldering seperating a little or something extremely minor that could be fixed by opening it up and barely touching a couple wires, but no one is going to do that or does that unless they're super broke. I usually suggest people just get a unit like an eleaf 40w or something but that's mostly because people don't want to buy a charger, buy separate batteries, plus the vape unit, plus the coils.
I'd suggest something but I don't know what's going on with pens, ive lagged a couple years behind. I think the best options nowadays are just an actual glass rig with one of those electronic nails you plug into the wall and is always ready to go so you don't have to deal with the torch and shit