[Beginner] Looking for entry DA polisher to fix paint chip

Since my birthday is coming up, I would like to invest in an entry DA polisher for applying sealant and wax to my '17 WRX as well as fixing the paint chip that I have been trying to repair. I watched AutoGeek's YouTube video about selecting a DA polisher and saw that there were some that use small pads for very fine detail work and large pads to cover large areas. Can anyone suggest a good inbetween as an entry level tool?

For reference on the repair that I have worked on, you can find pictures here: https://imgur.com/a/UuSzt

As a quick background, the spot started to rust. I purchased a Subaru paint correction pen, used the ceramic nub to remove the rust, filled in the hole with paint, and wet sanded with 2500 grit sandpaper. It seems that I may need to fill the hole in a little more before applying the clear coat, but the end goal would be to polish and buff out the area to a finish similar to the rest of the car. Any other comments or suggestions on the matter are appreciated.

Welp... That was easy. Thank you for the suggestion! It seems this one is the most versatile and won't require me to purchase multiple DA polishers for different applications. I will just add a 3" backing plate and the appropriate pads for easy swap out.

[EDIT]

Should I consider a dual action random orbital versus a random orbital... if those two things are even different?

Would the fitting be incorrect if I use a 5.5" pad on the 6" backing plate? Or should I always shoot to have at least equal to the size of the backing plate when selecting a pad?