Best IAP?

What are some of the best in app purchases?

Im not a whale, not going to buy everything. I am just curious what's worth the best value.

I currently have ad removal and all the auto clicker chests and speedster extension.

Im wondering what could be the next purchase to make? I slowly save up Google Opinion Rewards money. I was thinking about the Hyperion Lane next maybe for long term.

Thanks ahead of time and I have been loving the game. Currently lv60.