If the opportunity does not know your name yet, introduce yourself through work.

Opportunities arrive through recognition, and recognition comes from visible work rather than from stated interest. Telling people you want something is much weaker than showing them something you made, because the work answers the question they would otherwise have to take on faith.

Instead of asking to be considered, produce something small and relevant and put it where the right people will encounter it. That is a slower route and a considerably more reliable one.