i'm short of money and i bought the redragon kumara for like $50, it's very nice if u like the clicky sound and 4 gaming it's good too, obviusly, it's an economic kb
You need a more specific price range if you want a better advice
Wash it with water. It should remove the sticky sugar from the keys.
Got myself a alloy elite pro rgb for 110$ I think it's a good deal
Don't go for Logitech They have their shitty romer G switches which break overtime and keycap customization is limited
Go for GMMK Glorious, Alloy elite pro rgb, Corsair K95, Ducky