I'd like to refer you to the following meta-thread: here.

Granted, the original question therein was about Hitler's relationship with Zionism, but there are further links by /u/Georgy_K_Zhukov about The Madagascar Plan and otherwise speaks in some detail to the multi-pronged attempts of the Zionist movement.

Also here is a post by u/ghostofherzl (damned fitting name) about The Uganda Plan and other possible locations.