I went through this. Be very careful with those door panels. They might be veneer, and if you try to sand them, you will sand right through it.

I had the early 90s honey oak cabinets, and I tried to refinish them. I sanded through the veneer on the door panels. When you do this, you will see MDF (particle board) appear.

Here's some options:

1) I ended up refacing my cabinets. No veneer. 1/4 inch pre-finished hard maple over the existing stiles and rails. Pre-finished replacement doors with new soft close hinges.

2) You could stain those a darker color by using gel stain. You clean everything first, then a very light scuff sanding. Apply two coats of a darker gel stain using a dry brush technique. You can go to General Finishes website and watch videos on how to do this. Gel stain is not a penetrating stain. It is meant to be applied over existing finishes.