We have the same problems on our front steps as well. It got really dangerous earlier this winter.

I ultimately purchased thick rubber mats that were made from recycled tires. So far they’ve done a nice job giving a good deal of grip on our steps. They’re not maintenance free, as they have to be occasionally taken up and thrown back down just to get the snow and ice out from the tread. But I’m really impressed with them.

I don’t want folks to think I’m pushing some particular product, so I won’t leave a public link. If you’d like a link, PM (not chat) me.