We just launched our instance at https://beehaw.org not too long ago.
However, a good number of people have been asking questions like this for the past several days on our Discord server.
P.S. - I will have a big surprise (hopefully…if all goes well) for the Lemmy community in March.
For sure. Reporting issues and translating are the easiest to do, and even running an instance is pretty easy, though it comes with a monthly cost ($5/month is enough for a moderately sized instance by Lemmy’s standards). Contributing with code requires more specialization but it’s also very useful.
There are a lot of options, so people can pick whatever they are the most comfortable with :)