You want optical zoom, the rest is really money.
So, a 4k Ultra HD camcorder with 60x optical zoom will be better than 1080p with 60 optical zoom, but probably 2+ times the cost
Further, with editing software, you can zoom in the software further when in 4k, diluting it to 1080p and getting even more zoom while maintaining Youtube quality video.
However, 4k video takes tremendous amounts of power, memory, speed, and money to mess with.
So, a 1080p camcorder with high optical zoom, is the "easy," cheap way out.
If you've got an updated/newer computer, if you don't mind spending money on additional memory devices, if you don't mind the higher cost SDHD cards the 4k video needs, and if you get decent editing software...
A 4k camcorder with high optical zoom can still be an easy way to go, as you learn, provides additional benefits that can up the quality and zoom even more, and stays with the times.
Of course, this is again, staying in the reality of this thread, you could always spend "new house" kind of money and have the best of all worlds...