New guy!

Hello and welcome. There is a very wide range of lenses now available and it depends a lot on your style of shooting. For now I'd stick with the kit lens until it becomes clearer what you are missing (eg macro, telephoto, speed).

 

Welcome and lets hope u enjoy ur camera . I think u are a doc too..cool we are multiplying here .
Now it depends on what kind of photography u do but for every day street photography I would recommend Panasonic 20 mm 1.7 and if funds are not an issue then PL25 .
The second must have lens is olympus 45 mm 1.8 perfect for portrait photography and as well as street photography .. this lens is extremely sharp.
have a look at these two threads

https://www.mu-43.com/f57/caution-if-you-see-thread-u-might-poorer-usd399-soon-19671/
https://www.mu-43.com/f80/panasonic-20mm-f-1-7-image-thread-298/