I hear you! I second Rashmi and Grace on this. However, I feel one way you could gain allies/collaborators is by volunteering to help one of your team mates. If in a standup or a group meeting, you see someone has a blocker that you could help with or you feel there is a common topic of interest or you have a different insight from others, you can volunteer to help or suggest a solution. I find this not only gives you an opportunity to score on the team spirit but also gives visibility to your impact in the team.