WiGLE.net

I'm trying to figure out my position using only nearby WiFi addresses.

Using wigle I can resolve bssid to AP coordinates, let's say 4.

And I also have the signal levels to each.

What's the procedure after that to get my position?

consider https://github.com/wiglenet/m8b - it's a portable extract that'll get you close.

Signal strength isn't easy to use - multi-path propagation is harsh in real world situations.

Thank you, seems a bit overkill for me, I'm happy to use public data and not concerned about privacy much, and application is infrequent.
Upon reading I found the least error square matrix method, I will give it a go.