I always find roundups to be the the most helpful when trying to pick out parts, and it seems like ProCooling always has better ones and better equipment than most.
I also thought the oldschool waterblock roundup was really good, i find history like that to be really interesting. Gives a perspective on the evolution of what we now see on the market. I have a SysFX socket A block from a few years ago if you want to buy it cheap pHeastus

(sysfx went out of business almost as fast as it went in, thier stuff is very hard to come by these days)