During the day I have yet to experience a violent crime. My bad experiences have included catcalling when taking public transportation and uncomfortable run ins with unhoused locals. We are notorious for bad drivers as well. Overall, if you stay in lively areas you should be fine even as a solo traveler.

Sunrise near Sawgrass is VERY safe but I would caution against walking along main roads at night due to traffic accidents or assault attempts. Broward is very unsafe but Sunrise the city close to Sawgrass Mall is good. Wilton Manors is also pretty safe, but I don't like Fort Lauderdale at night. I also frequent Miami, and Wynwood is pretty safe but expensive. South Beach is rife with harassment, I'd only go in a group.