That's cool about getting you into Elvenking. I only know a little bit of their body of work, and I've been meaning to check them out further, so this may be my cue for that.
Another power metal band which I think highly of and unlike Elvenking I have a better knowledge of is Blind Guardian.
Here are a few songs from them to check out.
https://m.youtube.com/watch?v=NAtNIbF61jY
https://m.youtube.com/watch?v=3IAT06unls8
https://m.youtube.com/watch?v=zZvi6LPoigU
Also since you liked that melodic black metal, surprisingly, in a good way. Here's another rec from that genre.
https://m.youtube.com/watch?v=k4D57cunu84