Child Theme like Layout Builder?

I like SG Window for its versatility. I’ve been using the Layout Builder Child theme because it makes good use of SG Window and fit how I like to structure my sites.

But Layout Builder is getting old and I’d like to know if there is another child theme that is like it, just more current and supported.

Or rather than loading existing child themes, I’d like to hear from folks who create their own child themes based on SG Window, to understand the challenges, satisfaction, preferences etc.

Thanks!