If you are having trouble finding freelancing work, you may want to try these avenues:
How to find a .NET company?
Look for the company listed in .NET jobs advertised online and reach out to people working at the company through LinkedIn and personal network. Make an offer to be freelancer/on-demand help.
If company is not identified in a .NET job posting, just send a job application pitching to be freelancer. If company is not big, you might hear back.
Reach out to Microsoft Partners (Service, Consulting, Development) in your area. They are more likely to use .NET or know company/people working with .NET and might looking for .NET freelancers.
Search online for companies selling Windows and .NET based software.
If you visit a place of business, such as dentist, doctor, mom-and-pop shop and see them using any unique business-specific windows software, find the name of software, vendor and reach out to them.
> I have an aversion against freelance websites because they're just a race to the bottom where people from India will outbid you.
Change your mindset! Instead of ignoring a site because you don't like certain things about it, figure out how you might be able to get benefit out of the site while ignoring the negative sides or things you don't like. List your .NET profile at as many freelance job related sites as possible. You don't need to actively apply for low-price contracts. Just keep profile active and searchable for companies to find you. Apply to interesting projects only from companies/people in your own country/local area.