i need names of fantasy metal bands!

Just keep listening to BG. At first I didn't like them because of the Hansi. Then, as I heard them more, they grew on me. Now they're one of my top 5. Same thing happened with CoB.

Check out Twisted Tower Dire. They have song titles like "Axes and Honor," but they are influenced by maiden-ish metal. So, it's a good mix between the two types of metal. www.twisted-tower-dire.com
 
Try Scythia... They made this crazy medieval tavern video featuring a dwarf and a wizard. It's a lot of fun and they can shred some Celtic melodies:

 
You can't beat Gamma Ray for this genre. 2 great guitarists, fast drumming and unusally good lyrics for a German band of this nature. Led by Kai Hansen of early Helloween taking his band in the direction Helloween should have gone which I suspect is why he left to form a new band of his own.
Land of the Free
Somewhere Out In Space
Powerplant
No World Order
are 4 excellent consecutive albums released at their impressive peak.