I'm not trying to add confusion, have you considered uploading to Gedmatch? Although not many have a tree on there, what it does is, You can upload your DNA taken from 23andme, Ancestry, Myheritage etc. It is almost like a universal database of DNA across all the family research websites. It is free (there is a paid option also). But it could be worth trying as you may have a close relative thats tested via 23andme that may have uploaded there. Not to cause confusion though as a downside is if they dont have a tree is trying to establish your relation. The plus side is each match will have their email displayed so you can always email them directly rather than relying on a messenger type system. Could be an option if you get a little stuck.
I am also more than happy to help with DNA and tree building