If you want something very similar to the P7; same size, same barrel length, single stack 8+1, simple function, thin, polygonal barrel, no safety lever, then look at the Kahr T9. This pistol isn't always easy to find, but it's really a nice pistol.
My personal carry is a HK P2000sk, but I wouldn't hesitate to carry the T9. It's very reliable.
The FN 5.7 is a blast to shoot. A very nice pistol. Maybe a bit large to conceal, but certainly capable. In the current atmosphere the FN prices seem to have skyrocketed, beyond the already heady past prices we saw.