I love the minis and smalls and have a modest collection to which I would like to add more! A great resource for Minis is the Hosta Library; Rawson's Lists has an extensive inventory of minis and smalls as well as many other lists of hostas and their attributes.
Some of my favourites include: Blue Mouse Ears, Mini Skirt, Church Mouse, Stiletto, Curly Fries, Gemstone, and Appletini to name a few. I am hoping to add Sun Mouse and Munchkin Fire this year.
Here is a container from last year with Church Mouse, Mini Skirt, and Holey Mouse Ears that I have: