Templates are a subjective thing and massively time-wasting to develop.
It is not reasonable to expect any spare-time developer to create one for free.

I've (very) slowly come to some conclusions about the Bootstrap one.

I've come from the dinosaur age of pre-css and pre-framework. Since, I've got used to adding a style here and there to move stuff about, piecemeal.

Not so with Bootstrap. It's a world of its own classes and functionalities and so, no, you should not be adding your own discrete classes and styles all over the place trying to get what you want, you have to use the in-built ones, and so, yes, you have to do some studying again.

Do a couple of tutorials to get the idea how it works, then install and clone the Bootstrap template and start reading the code from the header downwards, look up those meaningless classes like mr-2 and find that they not so meaningless.
Change stuff in develope tools rand see how it does change.

You'll find the template gets easier to understand and so easier to modify as it is designed properly with the absolute minimum necessary.

Gradually I'm finding my feet with Bootstrap, but as soon as it is functional with my mods, it's going live. Visual tweaks can come later as I learn.

It is FAR better to go this way than get a pre-made template. I got hold of one a couple of weeks ago to try out, and it was just far too much to de-louse and then make changes/repair it.

The only way more templates will become available is if users pay a developer to make one, then share it on Github for others to improve.

If you want this project to regain strength, you have to invest something in it.