Looking for Legendaries

So, I've been away from pokemon for awhile now and I'd like to get some of the classic legendaries from previous generations like ho-oh and mewtwo, mew and the 3 legendary birds and the 3 annoying beasts from gold and silver. Obviously since I've only had white for a week I will not be able to make the best of trades for them and I'd rather have a legit pokemon no hacked ones. If you could help me with this endeavor that would be awesome and most appreciated.

I could offer u a full set of legendaries uted except dragons for nothing at all but whatever u can catch in the wild, I have so many idk what top do with them so maybe karma will help me out if I help out others as long as u don't mind random natures.