Pull-ups/Chin-ups & Dips have always been and will always be staples in any routine I perform.
The act of moving your body weight through space and gravity in these compound movements sends a great signal to your brain that it is going to need to add more strength and also more muscle for future usage.
If you struggle with these movements and go to a commercial gym, most facilities have a dip/chin assistance machine and that will work just fine, but make it a goal to perform these movements using your own body weight as soon as possible.
The concentrated effort will pay huge dividends and you will love the results in strength and aesthetics.
These movements build that elusive v-taper (wide shoulders, tight waist/mid-section.)
When you get more advanced, add weight to these movements by strapping plates or dumbbells to a lifting belt. You can rapidly progress on these exercises with a fixed focus.
When you get real advanced, you may even want to consider investing in gymnastic rings to make these movements even harder.
Also, something to take notice of is anyone that masters these movements almost certainly has a great core/mid-section.
Get good at dips and pull-ups/chin-ups and you will be well on your way to super strength, athleticism, and aesthetics!