Thank you for your feedback. The problem with the dropdown is that the list will contain several hundred items and there’s up to maybe a dozen, often non-consecutive items to select. With a select box of the right size and vertical scrollbar that is way easier than with a dropdown.
I think I’ll create the with flask for now. If I had more experience in html and js I’d be happy to help with the html_components, because I really like the concept of dash.