Best gallery (>20 images) to embed into Ghost Post

Hello guys, I’m new to Ghost and it’s amazing. Just have a quick question:
My site relies a lot on image gallery, sometime >50 images. Is there any good gallery tool to upload images and embed into Ghost post?

What I need is:

  • Upload multiple images (sometime 100+) into album, then embed into Ghost post.
  • Displayed as grid with ALL images.
  • When clicked, open as lightbox or event redirect to gallery website.
  • I willing to pay for premium to store all my images.

I’ve been trying imgur, but its apprearance is too simple.
Please share your advice on this. Thank you!