[CentOS] reputable sites to download RPMs

Hi Everyone

I would like to use kicad for circuit design.

It does not appear to be in the repos. I have built all the other
software that I need and not included in the repos from source but I
have struggled with kicad.

There looks to be lots of places on the net that I can download RPMs not
in the repos from but I don't know which ones run honest operations.

Could anyone point me to a good site?

Thanks for reading my post-Patrick