Find a shop that sells keyboards. Then, for all LED keyboards they have, look at the price and how nice it clicks, and possible other factors that you don't mention (like the color of the LEDs, and if you can turn them off, and how big the enter-key is).
Then buy the one you like most or go to another shop if the best is not good enough.
I want it to be economical... it does not have to be gamer quality... any suggestions?

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