Hi & Welcome

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I have several eyepieces (6mm, 12mm, 16mm, 25mm & 32mm) and a 2x Barlow lens.
I use the 25 and 32 mostly, with the 16 used for planets. The barlow rarely gets a look in

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Remember divide the focal length of the telescope by the focal length of the eyepiece to get the magnification. Also higher mag. can darken the background sky to help provide contrast for faint objects.
What type of photo's are you looking at taking? Planets/Deepsky.
Camera?
Telescope mount?
Look around the forums many experienced people with honest advice.