[US] Got about 20-30 of these emails last night

Last night, all around the same time, I got about 20-30 of these emails last “welcoming” me to a site. I don’t have any profiles on any of these sites, so no personal information or credit card information is stored.

It looks like someone just used my email to create new user profiles on all these sites. I checked my credit card statement just to be sure and nothing looks out of the ordinary. This is the first time something like this has happened and I just want to be sure that I’m safe.

Thank you for your help.