我旅行中的第一站将会是哪里？ 用英语要怎么说？

Where will be the first stop of my travel?

where is the first stop on my journey.
on journey固定搭配
另外由于“旅行的第一站”对于这个旅行而言往往是固定的，是一种客观规律的体现所以用一般现在时

Where will the first station of my travel/journey be?

Where will be my first place to visit?

on journey

Where will be my first destination during my journey?