If you don't see more than 1 of yourself being useful to a 3-5 member team(Meaning 1 to 3 other people with different skill sets). You're not going to be a designer for a small team.
Look at joining other teams. There is a positive side about this that small-indy/hobby games fail frequently, and often. Which means you're going to be able to get onto 2 to 5 of them in a year of time. So this is going to get you two very valuable things: first you can learn from others mistakes, you also meet people that are actually useful(so you know who to contact later).