Everyone is chasing “the next Game of Thrones.” TV executives have been frantically looking for a new blockbuster series to fill the dragon-sized void in everyone’s Sunday night since the HBO fantasy series ended in 2019. The Wheel of Time, His Dark Materials, The Witcher and Shadow and Bone all tried to conjure some Westeros magic, and this year Amazon is looking to cash in on the fantasy craze with a new imagining of The Lord of the Rings…