Betty, you don’t say what you’re scanning, books or magazines I take it given the need for a flatbed?
Otherwise the Fujitsu scansnaps are the best option for paper documents, multiple sheets can be stacked, a nice crisp PDF the final outcome.
Lately, for books etc., I’ve been content with the outcome of Scanner Pro on the iPhone and iPad, again multipage PDFs, not perhaps as clean a scan as a flatbed but perfectly legible nonetheless.
To actually answer your query, I would imagine any Epson flatbed scanner would be perfectly fine, the upper models having application primarily in visual art or photography.