One of my favorite anthologies, which I keep checking out at the local library, is entitled 'World Poetry'. It's back in the library now, so I don't have the information on it handy, but it provides a huge sampling of poetry, and it's grouped by era and geographical references. An excellent indicator on how poetry has evolved over the centuries. Next time I check it out, I'll include the relevant information here.
Curtis
I didn't mention thesaurus or rhyming dictionaries because online resources are quicker to use, for me, anyway.
http://www.rhymer.com/ does a rhyme search by several features, and is free. There is a more comprehensive version available for more serious users that is fee-based, but even the free version is fast, flexible and rather comprehensive.