I highly recommend SNB portal, for all WiFi related stuff - current industry state and news (relevant to buying APs/routers), in-depth reviews, comparison reviews. I only wish they would ease off on Captcha usage, I sometimes need to click for minutes on bicycles and street lights over and over again.

I used it to upgrade from my overheating and low range Linksys to a strange rare but efficient Synology router and it was a very good buy in the end.