I think (depending on year) there are only 2 globes in the main cluster - located at the top. So possible both are blown. If you have tiny hands and you’re also a contortionist (!), you may be able to reach up and get them without removing the cluster. Otherwise it’s pretty easy to remove the cluster part way to access the globes. Sounds like the rest of the items on your cluster are working. If there were a number of things not working, I’d suspect one of the plugs on the back of the cluster has come dislodged. Another thing that can cause issues is the dimmer rheostat. This can easily be tested by bypassing it. However, if you have other dash lights for the clock or heater controls working, I wouldn’t suspect the rheostat.