Here is a seed which will spawn you just 100-150 blocks away from a large jungle biome. A bit further into the jungle there are lots of epic cliffs and mountain overhangs. It’s a really difficult type of terrain to pass through but that is what makes it an interesting seed.
Turn around once you’ve spawned and cross over the river and then go straight through the spruce forest until you get to the jungle. You can also use the following text command to teleport there instantly: /tp 434 114 -41