An 11-34 is by definition full of big gaps.

What cassettes do you have on your other bikes?

Just for example, I'm not happy without a 16T cog. Doesn't matter what's in front - 53/42 on my old race bike, 50/39/30 on my C'dale - 15 to 17 in the back is just too big a jump for my legs.

If you figure out where the jump(s) is/are where you can't find a comfortable gear, you might be able to find a cassette with a similar range but smaller gaps where it counts - by going to SRAM which is Shimano compatible, or by giving up the 11 in favor of a 12T high gear, maybe. It's definitely harder nowadays with cassettes, than it used to be when you could buy the cogs individually and slap them on a freewheel.