Charmander is definitely one of the more well known creatures in all of Pokemon, so it's no great surprise that the fiery dragon returns for Sword and Shield. There's only one way to get Charmander in Pokemon Sword and Shield, and you'll need to make it through the vast majority of the game before it's given to you.
Where to Find Charmander in Sword and Shield
Getting Charmander in Pokemon Sword and Shield is no easy feat. Unfortunately, the loveable firestarter won't actually be available until you've completed the game, and are placed back into the house where you kicked off your adventure with Hop.
We're not going to spoil the end of Pokemon Sword and Shield in this guide. All we're going to say is that you need to have beaten all eight Gym Leaders in either game. Then, once you've attained the status of Pokemon Champion, you'll find yourself back in your home with your mum, where the adventure began.
Exit your house, and run down the small hill to Hop's house, where Leon first gave you the choice between Grookey, Scorbunny, or Sobble as your starter Pokemon. Enter the house, and then go into Leon's room, which is on the right from the entrance. On the ground in Leon's room, you'll find a PokeBall, which contains none other than Charmander itself! It's now yours for the keeping.
How to Get Dynamax Charizard
As soon as the Dynamax feature was revealed for Pokemon Sword and Shield, questions bounced around about who could be Dynamaxed. Game Freak actually showed off Dynamax Charizard in artwork for Sword and Shield before the games even launched, which is why this has become a pretty popular search query.
Unfortunately, Charizard can't be fought in a standard Dynamax battle. The only way to obtain Charizard for yourself is to beat the game, find Charmander using the steps above, and then evolve it all the way to Charizard. One quick trick to evolve Charmander to Charmeleon, and then to Charizard is to use the Fire Stone.
Once you've eventually evolved your Charmeleon into a Charizard, you'll finally be able to see what the Dynamax version of Charizard looks like. It's definitely a sight to behold, and it's undoubtedly one of the most powerful Fire-type Pokemon in either game.