For a similar experience to Dapperbuurt, you'll find Oost and De Pijp to be excellent choices.
Oost, or Amsterdam East, offers a relaxed yet interesting atmosphere with plenty of green spaces and a good mix of local life and visitor amenities. It's home to the Oosterpark, a lovely spot for a stroll, and the Tropenmuseum, which is well worth a visit. The area around Javastraat is particularly well-known for its independent shops, cafes, and eateries. It's well-connected by public transport, making it easy to reach other parts of the city.
Couples looking for a slightly more residential feel with access to lovely parks and local markets will appreciate Oost. You can enjoy quiet evenings at local restaurants and explore different cuisines, all while being just a short tram ride from the city centre.
De Pijp is another excellent option, known for its busy Albert Cuyp Market, one of the largest street markets in Europe. This neighbourhood has a lively energy with a wide selection of bars, restaurants, and boutiques, particularly along Ferdinand Bolstraat. It's a bit more bustling than Oost but still retains an authentic local feel, away from the main tourist crowds.
Solo travellers often enjoy De Pijp for its easy-going atmosphere and the sheer variety of places to eat and drink.