Can you get elekid or magmar on Pokemon HeartGold and where?

Yes, you can obtain both Elekid and Magmar in Pokémon HeartGold. Here's how you can get them:

- Elekid: Elekid can be found as a wild encounter inside the Johto Safari Zone. Safari Zone is located on Route 48. To access it, you will need to receive the Safari Zone Pass from Prof. Oak after defeating Red atop Mount Silver. Inside the park, you can use bait and rocks to attract and interact with Pokémon, including Elekid.

- Magmar: To obtain Magmar, you will need to trade. Since Magmar is exclusive to Pokémon SoulSilver, you can trade with another player who owns SoulSilver or complete a version-exclusive trade yourself by owning both HeartGold and SoulSilver. Alternatively, you can also try trading with players online.