[mothered]

is there a way to check on Amazon if OTP is required?

Simply make a general enquiry (not from your own account), as though you're a concerned customer wanting to make sure the package will be safely delivered.

Then ask how the consignment will be verified on receipt of goods.

Is there also a way to filter items only sold / shipped by Amazon?

Search for your Item on Amazon and then In the left pane under "Seller", check the box that relates to the Amazon domain In your region. For example, amazon.com. amazon.de and so on. The search results will refresh and display Items that're sold and shipped by Amazon.