A number of the brands you’ve probably never heard of, and who may be cheaper are owned by the big names - Pirelli etc.
Black Circles always seem to get good ratings as a supplier.
Formula 1 Autos are cheap (online prices - not if you just turn up needing new tyres), but you often have to wait a while for fitting.
As far as reviews, I use Autoexpress and compare the basic ratings (noise, wet grip etc) on Formula 1 Autos/Black Circles.
Like most things nowadays, you could spend days just reading online reviews! Plus you ideally need to look at reviews for the same, or at least similar car (a review on tyres for a heavy SUV will need naff all when shopping for B Max tyres).
The other thing is Tiff and Plato reviewing a tyre by drifting it round a track on Fifth Gear etc looks good, but in the real world........