Hello and welcome.
The usual mantra here is go out into the stores, sniff a lot, and find out for yourself what you like. Everybody's taste is differenent. Have a read through some of the threads and you will see that there are plenty of scents out there that are loved by some people, and loathed by others.
No, citrus isn't girly at all. Chanel Pour Monsieur and YSL Pour Monsieur have both been around a long time, Terre d' Hermes is a more recent take, much loved round these parts.