i need to read a masterpiece yaoi or shounen ai.... pls tell me if you know any!!!!

1.saezuru tori wa habatakanai
2.acid town
3. Canis

I wouldn't say 'masterpiece,' but here's some good ones.
- Never Understand
- Blue Sky Complex
- Smells Like Green Spirit
- Konya mo Nemurenai
- Itoshi no Nekokke
- Nobody Knows

agree with the above, also blood bank ლ(´ڡ`ლ)