The flying cirkus guide to hovering video is very good.
apart from that its just take a look at an expeienced flyer's setup, and copy it. Then practise practise practise and then practise some more!
You will learn to hover and TR much much faster if you get a sim such as aerofly pro deluxe - you will not beleive how much it will improve your flying if you put in 10 mins a day.