A long time ago I tried watching How to Train Your Dragon: Riders of Berk, a TV series. I couldn't get into it at all - to me didn't feel much like the films - altho I probably only watched 3 or 4 episodes so it may have become better later.
Apparently after CartoonNetwork gave up broadcasting it (2 seasons/40 total episodes, kids are 15ish), Netflix took it over (6 seasons/13 each/complete, kids are 18ish) and it was renamed Race to the Edge. So I decided to give it a go again, but starting from season 3. It's much better (imo), feeling more like the films except it focuses on the kids and their Dragon Rider organization set against those that would hunt/profit/kill dragons (it's set before the 2nd movie). There's a central baddie, Hiccup's dad and a few other adults show up now and then, etc. Animation is good. Less attention to background details but the chrs. and dragons are animated quite well.
Marathoned season 3 and 4. The rather otp comedy sequences (those twins...) goes on a little too long at times perhaps but it's punctuated with moments of more serious themes like the films do. I occasionally ffwd in 10 second increments but not too much. Thumbs up overall. And ... there's plenty of Hiccup/Toothless moments.