Based on the provided search results, there are several recommendations for dual male protagonist novels with a theme of social anxiety (社恐). Some of the recommended novels include:
1. "死亡之境" by 今虞
2. "歡迎來(lái)到惡靈游戲" by 輕予
3. "他在驚悚游戲里野翻了" by 北夢(mèng)若曦
4. "無(wú)限練習(xí)生" by 妄鴉
5. "我在無(wú)限游戲里封神" by 壺魚(yú)辣椒
These novels feature social anxiety as a central theme and explore the journey of the characters in overcoming their fears. However, it is important to note that the search results may not be exhaustive, and there may be other novels available that fit the criteria of dual male protagonist novels with a social anxiety theme.