I love the look of flame fractals, but I never figured out how to tweak things to get them to look more like how I want. I could never predict what a particular change would do to the look, or which change is needed to get a particular look.

I tried Apophysis (or one of the many spinoffs), but it never quite clicked.

Here's a web editor that has a fairly simple interface: https://fractalar-app.web.app

It might not run very well depending on your hardware, though.