Database. Please select a thesis topic.

Question

Database

I would like it to be relevant and not complicated.
General suggestions from the supervisor:
1. Database schema with a large number of parameters (for example, a household appliance store). Analyze different implementation options for such a database. Apply materialized views to speed up query execution.
2. Development and comparison of two variants of the database for an arbitrary subject area.
3. Development of a database that contains a classification of something and can be used to support decision making on the choice. Subject matter options

Answer 1

So which topic should you choose?