I use an app called Gallery KK. It looks and functions like the old Moto Gallery app from the Kit Kat days, hence the name. It's free to use, but does have ads. If you like it there is a small fee to remove ads. There are tons of apps like that on the Play Store, the trick is finding one you like. I like the one I mentioned so I use it on both of my phones, wife's phone, kids phone, etc. As mentioned earlier, look at App notes and descriptions, user reviews and give some a try until you find one you like.