One-To-Many member-to-articles relationship

We have a small dashboard system where users log in and read articles that are submitted from other members/authors. We are wanting to have a form which allows a member to chose which categories of articles he would like to be on his home page when he logs in. Then we’d like to figure out how to actually create that home page so that only the categories of articles that the user has chosen are visible.

From a DB standpoint this seems to be a one to many relationship between a member and categories, but we don’t have a clear idea how to accomplish this inside of EE (without raw PHP/queries), especially using the Member module, since it isn’t a channel and doesn’t seem to allow creating relationships in the member custom fields.

We looked at creating a custom field for every category type, but there are about 95, and as we add or remove them, it would be extremely cumbersome to try to keep up with them all. Even if we did we still aren’t sure how to connect 1 member to many categories or many entries via a category.

Some help will be highly appreciated, thank you.