Difference between active and passive preamps

I'm still using a Sony TA E86B SS preamp from about 20 years ago. It still sounds good and clean to me and has been absolutely troublefree.

In putting together a new system -- Green Mountain Europa's, Edge M8 amp, Discovery Essence IC's --
I want to consider how to further improve things.

What are the relative advantages/disadvantages of passive vs active preamps?

Is it a good idea to stay in same "family" as amp to replace preamp?

Best preamp under $2000 to reproduce jazz, symphonic, choral, acoustic, world music?

Thanks.