Formal:
* "Gosto de conhecer" - This is the most common and formal way to say it.
* "É um prazer conhecê-lo(a)" - This literally translates to "It is a pleasure to meet you" and is a more formal and polite way to say it.
Informal:
* "É legal conhecer você" - This is a more informal way to say it, meaning "It's cool to meet you".
* "É bom te conhecer" - This is a more casual way to say "It's nice to meet you".
* "Estou contente em conhecê-lo(a)" - This translates to "I'm happy to meet you" and is a friendly way to say it.
You can also add a bit more context to your sentence, for example:
* "Gosto de conhecer novas pessoas" - "I enjoy meeting new people"
* "É um prazer conhecê-lo(a) em pessoa" - "It's a pleasure to meet you in person"
The best way to choose the right phrase depends on the situation and the person you are speaking to.