collectd comes from EPEL el9, since it was not (yet) built for el10. They wanted to wait for collect 6.x to arrive.
https://dl.fedoraproject.org/pub/epel/9/Everything/x86_64/Packages/c/

yajl (needed for collectd) comes from AlmaLinux (devel-repo). It does not seem to exist in Rocky 10 (not in Appstream, devel, crb or so)
https://repo.almalinux.org/almalinux/10/devel/x86_64/os/Packages/yajl-2.1.0-24.el10.x86_64.rpm

jemalloc comes from EPEL 10.1-repo. It has not yet been build for 10.0 or 10z. But simply taking it from 10.1 seems to work.
https://rpmfind.net/linux/epel/10.1/Everything/x86_64/Packages/j/jemalloc-5.3.0-10.el10_1.x86_64.rpm
https://bugzilla.redhat.com/show_bug.cgi?id=2405317

awstats comes directly from https://www.awstats.org/
https://prdownloads.sourceforge.net/awstats/awstats-8.0-1.noarch.rpm

atop comes from EPEL 10.1-repo. It has not yet been build for 10.0 or 10z. But simply taking it from 10.1 seems to work.
https://mirror.plusline.net/epel/10.1/Everything/x86_64/Packages/a/atop-2.11.1-1.el10_1.x86_64.rpm

hitch from EPEL 10.1-repo does NOT work for us since it was built for a different OpenSSL-version.
Used the source-package and did a straight rpmbuild of it.
https://mirror.plusline.net/epel/10.1/Everything/source/tree/Packages/h/hitch-1.8.0-10.el10_1.src.rpm