A practical way to start is with people who are easiest to approach: friends, relatives, acquaintances, or people you’ve already photographed at events. Many people are flattered to be asked, and referrals from previous subjects can help you find more willing participants.

You can also try model-network sites such as Model Mayhem or OneModelPlace, where newer models may collaborate in exchange for portraits or headshots. Results can vary by area, so treat these as one option rather than the only one.

Another good route is a local portrait or photography meetup group. These often organize shoots where members share the cost of a model and studio, which keeps expenses low and gives you experience working in a more structured setup.

If you already have a social page or portfolio, people who follow your work may also be open to collaborating.

In short: start with your existing network, ask directly, use referrals, and supplement that with meetups or model directories if needed.