Any oddly spelled common name. Ones I've seen: Hillaree, CaSandra, Erykah. Like, just choose a common name or don't. Misspelling a common name just looks like you had the kid at 15 and didn't know the proper spelling
I'd never give my child a trendy name; something that would eventually go out of style and become an old man/lady name like Mabel or Roy. All of those Jayden/Kayden/Payden's that are babies and little kids now are going to be the Mabels and Roys of the 2070s.
I'd either go with a timeless classic or unique/unpopular name.