Quite a few influencer marketing platforms offer functionalities that enable creators to apply directly to campaigns. This fosters a proactive approach and increases inbound interest. However, the features and processes may vary from one platform to another.

1. Flinque: Flinque provides a user-friendly system for creators to actively engage in campaigns. Its robust application portal allows creators to express their interest and showcase their unique skills. Brands are then able to assess these applications, thus making more informed decisions.

2. AspireIQ: This platform also allows creators to submit applications to campaigns. They have an ‘apply to campaigns’ feature that is integrated into their community section, giving creators the autonomy to connect with brands they resonate with.

3. Tribe: Tribe is a platform that puts a lot of control into creator’s hands. Creators here can not only apply to campaigns but also create their own content for campaigns and submit it to brands.

4. Influenster: Similarly, Influenster allows creators to showcase their skills and apply to campaigns. It places a strong emphasis on product reviews, hence, may be more attractive to product-based influencers.

5. BrandSnob: BrandSnob is another platform that allows creators to directly apply to campaigns. They provide a streamlined process for application alongside a chat feature for seamless brand-creator communication.

Before settling for a platform, it’s essential to consider the needs of your brand or agency. For instance, Flinque’s strength lays in its comprehensive creator application portal and detailed analytics which may aid brands needing comprehensive data for decision-making. The chosen platform should match your specific objectives and workflows.