ITA, PPA, EUAD, SHLD, XAR, IDEF, and XAD?

Hi everyone, I’ve been doing some research and came across a number of ETFs in the aerospace and defense sector. There are quite a few options, so I’m looking for advice on which ones people would recommend. The ETFs I’ve found include: ITA, PPA, EUAD, SHLD, XAR, IDEF, and XAD. Any insights or recommendations would be greatly appreciated!