I'm so glad to hear that you're being patient and doing your research. Don't worry, you'll find your baby soon.
It doesn't sound like you would use puppyfind or any of those places, but just an fyi...
I don't recommend using Puppyfind.com at all...Majority of ads on there are scams. Almost 3yrs ago, I got taken by someone who advertised her dogs on there. She claimed to be a reputable breeder who had the parents on site, and healthy pups, blah, blah, blah (We later found out that she was a broker for puppymills!). Well, my baby, Miko, came to me with coccidia, heart murmur, upper respiratory infection, severe hypoglycemia, etc. Everything went away with a lot of dedication from me and my husband. Vets said he wouldn't make it, but he did! Months later, we found out that he has a liver shunt that's inoperable and bladder stones that will never go away because of his condition. He has to be on a special diet and medications for the rest of his life, but he should live a normal life on these things. He is like our child and we are sooo happy that he is in our lives. We can't imagine our lives without him. Who knows what would have happened to him if she would've kept him or sold him to a home that would have just put him down...
Sorry to go off topic, just wanted to share that story so that you realize it's worth the wait to find a reputable breeder.
There are several wonderful breeders here on YT. Hopefully, they'll post
Good for you for being so patient!