I'm quite new in this world.
Could anyone kindly tell me the most reliable site regarding Token's rating?
What exactly is it you are looking for when you say ratings?
If you mean ranked by marketcap (that's the most common measure) then go here:
https://coinmarketcap.comYou can also order by price change, price, volume etc.
If you're looking for something else please let me know and I'll try to help.