well, even if you just want some names of techniques to look up, there are quite a few. Some are chemical film techniques that can't be done in photoshop. Here are a few to look up:
double printing texturization negative stacking photomontage photocollage vignetting reverse vignetting sabbatier true solarization (rarely done anymore and requires special emulsions)) split contrast filtering (corresponds to advanced histogram manipulation) toning (can be simulated in photoshop, but with indifferent results) split toning (a random chemical technique for analog prints) partial toning selective toning tinting hand coloring dodging burning screening (corresponds to layering, in photoshop)
I'd have to write a textbook in order to explain all of these, and I'm not going to do that. I'd probably run into a word limit trying to fully cover even one of these techniques, so I'd advise you to look them up one by one. I'm sure there are people out there somewhere who have written entire web pages devoted to one or more of the aforementioned techniques. If you can do those, you're way ahead of most people (who don't even know what they are). There are, of course, many more (some photoshop, some darkroom only).