Credits to Phille#6891 over on the discord for finding these. -723 20 347 1 -751 31 383 2 -750 27 385 3 -761 48 367 4 -804 51 451 5 -807 31 445 6 -818 30 380 7 -822 32 363 8 -797 15 398 9 -822 10 380 10 -783 39 357 11 -789 52 382 12 -788 14 420 13 -803 13 415 14 -805 11 397 15 -828 10 421 16 -807 15 439 17 -755 24 373 18 -777 22 366 19 -781 10 437 20 -790 10 422 21 -750 15 423 22 -736 23 437 23 -796 5 360 24 -829 35 401 25 -792 43 408 26 -796 39 416 27 -824 15 403 28 -765 11 374 29 -779 10 416 30 every egg cord (not in any order) Note: I haven't verified these myself.
Be better with screenshots and general location information. X Y Z more for finding structures / bigger objects. Easter Baskets only use 1 block