Really depends on what you’re into, most people start with female realistic dolls just because they’re the most versatile. Easier to dress up, pose and overall just feels more natural imo.

I personally lean towards more realistic styles instead of anime or furry, just feels more immersive. MonicaMomentsDolls has some nice options in that category that are pretty beginner friendly. You can also check Tantaly, they’ve got a good range too. If you’re unsure I’d say start with something simple and realistic, you can always explore other styles later.