If you’re planning on just getting what you need from the Overworld and on moving on to the TF as soon as, and you want a pre-made City, this seed may interest you.
You spawn in the Overworld next to a Village and Extreme Hills, so you’ll be able to stock up on Ores and Diamonds quite quickly. Not much else really close by.
If you build your TF portal at your spawn point you will land in the TF on the border between and a Snowy Forest and a Mushroom zone where you’ll find the pre-made city.
There is a Naga Maze a short distance south from the City.
There is a Labyrinth a short distance north.
It'd be cool for a multiplayer with everyone having their own inter-connected rooms.