Quiksurvival

Tekkit classic is pretty much the main mod pack that makes the Technic launcher so pick a server with:

An online store

Helpful and friendly staff

The chance to be a server builder

Regular server restarts to reduce lag

With PVP enabled

You can even hold a party or a talk at spawn for just seven iron blocks per real life day

And monthly in game gifts to be won you know this is the one to go for!