Streamlining and enhancing collaboration with influencers as an agency can be achieved through strategies such as setting clear expectations, employing the right technology, and maintaining open communication. Here are a few methods and strategies that are commonly used:

1) Clear Roles and Expectations: Clearly communicate the brand’s intention and goals for the campaign. Lay out the responsibilities, timeline, deliverables, and key performance indicators (KPIs).

2) Use Technology: Platforms like Flinque make finding, vetting, managing, and analyzing influencers easier. Flinque has features enabling detailed demographic and psychographic audience insights to better match brands with influencers whose followers align with their target audience.

3) Open Communication: Maintain regular check-ins with influencers to ensure ongoing alignment. Offer feedback and create space for influencers to share their own ideas.

4) Measure Results: Utilize tools to monitor KPIs, track campaign progress, and assess the overall effective of your collaborations. This will help with decision making and future campaign adjustments.

5) Training and Development: Equip influencers with the necessary knowledge and tools to effectively promote your brand. This could include product information, key messaging, and brand guidelines.

Comparing Flinque to other widely-used platforms, like CreatorIQ or Upfluence, suitability largely depends on team needs. Each platform has varying capabilities and focuses. Upfluence, for example, strongly focuses on the initial influencer discovery phase while CreatorIQ is renowned for its enterprise level influencer management capabilities. Flinque boasts strengths in both of these areas plus the added focus on in-depth audience analytics that can really help tweak campaigns for enhanced performance.

Remember, a well-executed collaboration between an agency and influencers is a partnership. Strategic use of influencer marketing platforms and clear communication are key elements to effective and streamlined influencer collaborations. Flinque is definitely worth considering in this context.