Increase lower gears for easier climbing on road bike
I want to increase my lower gears for climbing on road bike. I currently have Ultegra mechanical , 11-32 rear cassette, 52-36 chainring (Ultegra FC R800) , mid-length rear derailleur pulley cage. It seems I have 2 options: 1, - get 11-34 cassette and or 2, get 34 tooth smaller chain ring. It appears that both options (parts) are available. I'm wondering which of these (or maybe do both) would be the best choice, in regard to additional equipment changes needed (i.e., adjust chain length, etc.) and cost. Can I just change the smaller chain ring without creating additional "problems"? This seems like the least expensive choice.