Irie Tulum
Located in Aldea Zama, Irie Tulum is a great area to stay in, with paved and well-maintained streets, lots of walkable areas, and green space. It's a quieter area that's very safe and has quite a few great cafes, restaurants, and bars.
It's about a 10-minute drive to the beach and about 5 minutes to downtown, so plan on bikes/taxis/a car rather than assuming you'll walk everywhere.