Hi. I use nail tabs with my StaticNails press ons and they work for me. Static Nails sets have ten different sizes and their largest is even too big for my thumbs!
Nail tabs are double sided and take a little practice to use, but hold well. You remove them by sliding the false nail parallel to your regular nail, as trying to lift up from the nail meets with more resistance. That way the nail stays on longer.
I agree with the comment that Kiss press ons tend to be smaller.
Also, there are several sites on eBay where you can get white or clear nails that you can paint yourself.
Since my dressing time is sometimes short I have to be able to get the nails on and off quickly.