I agree that anthos can be the place for experiments, for trying out the unusual, for giving yourself space. They certainly have been for me. Why else would I've made my first ever entry a quasi film script retelling of a kind of mediaeval fairy tale? 👀🤨😄 The Bard's Tale is still around, if you feel curious. Another theme brought forth Willpower, a story of love denied against a backdrop of Alzheimer's which remains a story of which I am most proud.
Having said all that, if a HEA romance grabs you - great. There's always the freedom to make of a theme whatever you will.