If you want 1440p you will have to look at monitors, unfortunately. In regards to reviews, I suggest you go on Digital Foundry and look at their reviews. They usually do one every couple of months and they obviously lean towards the gaming angle.
I would also like to add that although Microsoft say the Series S is targeting 1440p, I feel as the generation advances more games will be at 1080p than 1440p, so I would just get a 4K TV.
Seriously, if the TV is just for use with the Series S go to Costco or Best Buy, and select the cheapest 240HZ monitor/TV that has a good picture - reviews are always subjective. Or just use an older 4K TV. If for more things outside of gaming, then just get a nice 4K TV that supports HDMI 2.1. OLED’s are great, but a little bit more expensive