Adobe XD

Adobe's design tool that's fine if you're already paying for Creative Cloud.

Best use cases
UI design
Prototyping
Adobe ecosystem workflows
Simple design projects
Pros
Included with Creative Cloud
Good Adobe integration
Clean interface
Decent prototyping
Cons
Losing features and focus
Smaller community
Behind competitors
Future unclear
Pricing
freemium
Free basic + included in Creative Cloud (~$55/mo)
Alternatives
Figma
Sketch
Framer