Set up my freelance profiles and find first gigs

Help me start freelancing as [what I do, e.g. bookkeeper, video editor, Python developer, copywriter]. My background: [resume or LinkedIn link], my rate target: [hourly or per project]. First, pick the two or three marketplaces where this work actually gets hired [e.g. Upwork, Fiverr, Contra, Toptal, industry-specific boards] and say why. Research the top-rated profiles in my category on each and note what their headlines, overviews, and portfolios have in common. Draft my profile for each platform: headline, overview, skills list, three portfolio descriptions, and a rate, all from my real background. If I've given you access, fill in the profile fields; never submit anything for review until I approve the text here. Then find 10 open jobs I fit on each platform, posted in the last week, and draft a tailored proposal for the best three. Do not submit proposals; show me the drafts.