@Betselot Getahun Welcome to Microsoft Q&A thanks for posting your question.
Upgrading in place: https://learn.microsoft.com/en-us/sql/database-engine/install-windows/upgrade-to-a-different-edition-of-sql-server-setup?view=sql-server-ver16
Express edition (free) may very well be just fine, unless your DB has hit 10GB
I hope this information helps.
Regards
Geetha