Use the search facility on this site.
This topic is getting done to death every few weeks now. It's a question nobody else can reasonably answer for you. It depends on what you want - price, build quality, length of rail, goodness of dust extraction, noise, riving knife (or don't care), accessories, etc., even down to how long the power cord is, whether it is detatchable, and what the cord is made of! The list of parameters is a long one, and nobody but you has the slightest idea which things are more important to you than others.
Also, when you start to consider it, you're not asking a sensible question. Very few of us have used
lots of different brands, to be able to compare them systematically, and in any case, none of us have access to manufacturers' failure data, etc. So we cannot give you evidence-based, objective advice.
FWIW, any of the cheaper ones that are Festool rail compatible could be "upgraded" at a later stage, with longer rails. That also (mostly) gets you access to Festool's accessory system, such as the distance stops, and easy compatibility with an MFT in due course. I've just got an equivalent peg-grid worktable, and although I've yet to use it a lot, first experiments show it's a brilliant way to work. There's nothing inherently wonderful about the Festool system, incidentally, it's just that it's a
de facto standard.
I warmly recommend you have a good look through Peter Millard's YouTube videos of the last 15 months or so. He uses rails extensively in his workshop, and has an excellent setup. You'll get a lot of ideas from his work, I expect, including how to make cheap rail acccessories for yourself, rather than buy expensive small bits of plastic!
But back to where I came in: please, please use the search facility here (the one in the right-hand panel is best - the top one is a Google thing and not brilliant): There's shedloads of discussion about rail saws, even including how ridiculous they are, and how you shouldn't waste your money on them (as there are cheaper ways to do the same thing). You really have look at the evidence and choose for yourself. Oh and you can't beat physically examining several in shops, either (where you can also ask the manager how many of each they get back!).
Personally, I have a Makita, and after my cordless drill system, it's been the best power tool purchase I've ever made (I don't say that). But... I genuinely have no idea if I would have made a better purchase with Festool or Sheppach, or Bosch, or DW, or Einhell, or Lidl, or Silverline....
E.
*Perhaps I do know the answer concerning Silverline
