Best Shopify Bundle App - What Is The Best Bundle Builder To Use?

Simple Bundles has 1 really big limitation: you can't edit/add/subtract a product variant and expect the bundles to automatically update. The only only workaround is to recreate the bundle (meaning having to reupload all the images/descriptions) or edit the .csv file and reupload it. Either option is complete completely ridiculous. Imagine having 100+ bundles all sharing 1 product in common, and if this product now has a new variant there's no seamless way of getting all the bundles to upload automatically. Nightmare scenario tbh.

Hi, a couple of questions:

I want to create a bundle with lots of customizations in Shopify:

1) I would like it to actually show the color of the variants (like using hex codes) and display them like little buttons instead of in a drop down.
2) I want some of the products on the bundle to be mandatory and preselected, with no variants options.
3) I want to be able to add optional products inside of the bundle, so the user can create the bundle even without selecting one of those (kind of an upsell, but inside of the bundle)

4) I would like to show a side bar/popup or something similar with the image of the variant the user is currently selecting. Or at least show the variant image somewhere.

Do you know if there is an app with all or at least some of these features? Or could I modify the " simple bundle app" or any other app by code to make these changes?

Any suggestions will help, thank you! Great video!