Here are my top three blockchain uses for RWAs that are on the cusp of becoming normalized: 

1. Certificates of Authenticity for high value goods
2. Ticketing with royalties benefitting artist / performers
3. Rewards points for businesses

What else?

/boston townie, personal /dish portfolio, probably /boating code https://dish.codes portfolio: https://jackdishman.com

Blockchain based insurance policies backed by crypto liquidity pools.
Smart contracts bring a lot of efficiency especially when dealing with parametric insurance.

Reward points for business is also another interesting use case IMO.