I am a new user, which type should I use to easily capture video or take effective photos.

Welcome to the forum. It's not clear to me what you are asking here. Type of drone? Settings? Could you expand on your question?

Osmo Pocket and a Mavic Air .

If you want a cheap option but still a pro-sumer drone, I would choose the mavic air but if you want some great videos and photos, hands down choose the mavic 2 pro.

Hi PaulineSinclair, welcome to DJI Forum and we appreciate your interest in our products.Kindly elaborate your concern so that we can give you a better assistance. If you are referring to the camera settings, It will vary on the scenario however, you may check this link for your reference: https://djiphotoacademy.com/home/drone-photo-blog/ I hope this can help. Thanks for your support.

Perhaps this link which is intended to help a person choose the most suitable drone will guide you. It is by DJI, so I am surprised they didn't mention it themselves.
https://store.dji.com/guides/choose-best-drone/

I'll second that BRent