I was directed to a Facebook page "Genetic Genealogy Tips & Techniques" It's a closed group but is easy to join.
It's used by a lot of professional genealogists but they seem to enjoy helping beginners like us. Personally I found it all a bit confusing - there's a lot of talk about cMs etc but there are some great tools in the files page to help sort your matches.
I'm trying to get my head round one called the Leeds Color Clustering method
https://www.danaleeds.com/leeds-method-dna/ A lot of people on the FB page have had great results with it.