Here are some examples of professional development topics I've done before:
Social and Emotional Needs and Curriculum
Effective Independent Study/Genius Hour
Collaborative Engineering Challenges
Using Technology to Meet GT Student Needs
Creating a Scope and Sequence, Schedule, and Selecting Curriculum
Below is a sample of a professional development slideshow I created for a district with a brand new gifted program. It goes through definitions of gifted, asynchronous development, potential problems faced by gifted students, referral forms, accommodations in the regular classroom, and a general outline of the program. This is one example of my PD work!