New Puppy Research

We are looking to get a cavapoo puppy ~May2025 but I am neurotic so the research has already started🙃

First has anyone used a site like PuppySpot or Pawrade with any luck?

Second, does anyone actually use these home grooming systems like the AllIsOne or Uproot Clean for their pup and if so are they worth it?

Any other tips/advise is much appreciated!