I have been using VueScan for years. https://www.hamrick.com/
You can scan multiple pictures at once. All the options you need are in this program. Much better than the programs packaged with a scanner.

I use VueScan for my flatbed and my Nikon slide scanner. You can download and try before you buy. It puts a watermark on the scans until you buy the program. And supports hundreds of different scanners.