Where i can get the good seo software.

You might do better in a computer category. This is the genealogy category.

You could google "SEO" or "Search Engine optimization" to get some hints. Most sites that come up first in a search do so by virture of being well-written, warm, witty and helpful. Try searching for [Christmas News Letters] for example. Software had nothing to do with it; brains and talent were everything.