Based on recent assessments of NBA teams' popularity, fan loyalty, historical success, and exciting play styles, here are some top options to consider for support:

• Boston Celtics: The most loyal fanbase blending rich history with intensity, boasting an NBA record 18 championships and a passionate global following. They are also the reigning champs as of 2024 and have strong fan engagement.

• Chicago Bulls: Iconic thanks to Michael Jordan and a dynasty in the 1990s, still very popular with high attendance and fan passion despite recent struggles.

• Los Angeles Lakers: The largest and one of the most passionate fanbases in the NBA, historically successful with multiple championships, currently very competitive and entertaining to watch.

• Oklahoma City Thunder: The defending champions with a young, rising team and an energetic, loyal fanbase making games exciting and meaningful to follow.

• Dallas Mavericks: Known for their loyal fanbase and recent competitiveness led by stars like Luka Dončić, attracting both local and international fans.

You might choose your team based on legacy and history (Celtics, Bulls, Lakers), current excitement and youth (Thunder, Mavericks), or local connection if geography matters to you. Another method is to follow teams that resonate emotionally through players or style of play you enjoy. Watching a few games from different teams might help form this connection. Overall, the choice depends on whether you value championship history, passionate fan communities, exciting young talent, or a local/niche connection. Supporting teams like the Celtics, Lakers, Thunder, or Bulls provides a balance of loyalty, history, and entertainment, making any of them excellent picks to start your NBA fandom journey.

If location or personal preference is a factor, consider that too—teams like the Clippers or 76ers also have strong fanbases. But from a broad perspective of popularity, legacy, and current excitement, the above are top recommendations. This provides a strong foundation to choose an NBA team to support based on current popularity, fan loyalty, and team success as of 2025. Let me know if you want advice tailored to your location or favorite player style!