I have known that monthly search for a micro niche site suppose to be about 1,000 but what I don't know is how much of search results is a good number to go for that niche? like 100k, 200k or how much? Thx
What do you mean by "search results"? Do you mean pages search engine indexed? Well, I think besides some new niche, generally speaking, high search means large number of search results, especially when lots of black hat seo start building spamming websites.
Well, are you talking about indexed pages? It all depends on the content of your site, but I'd recommend building links and not worrying about your search results. Worry about getting long tail keywords with short tail as well, its better in the long run.