I do two back exercises on both my upper body days. And I do some rows after deadlifting on another day.
I'm the opposite of Th3pwnisher when it comes to chins. I treat them like any other main movement and like to add weight and do low rep sets (Shit, I worked up to a single last time! Why? For fun.) then do a couple back off sets.
Just get it in and try and do more over time. If you're not able to get stronger on any of the exercises, something needs to change - eat more, do more volume, sleep more, do less volume (ehh, probably not this one), deload (ehh, probably not this either) etc.
The various 5/3/1 books Wendler put out contain a ton of different templates. There's also a bunch available online. Find one you like and do it.