>>/1019/
# pacstrap /mnt base-openrc
will install the sets for openrc on parabola from a base instalation. Several daemons and packages that I usually use don't have openrc init scripts to install from the repo or just don't work when called.
I feel that source based distributions, even though they are harder/more work to configure and maintain, are the way to go for security.
Gentoo is the way to go although the recently publicized Source Mage >>/tech/11021/ seems worth looking into. I've never tried Source Mage but it looks interesting. Linux from scratch is the final frontier for me. I highly distrust Parabola/systemd but I still use it on a desktop and on two servers, I have too much homework keeping me busy for critical infrastructure, like my clearnet web and mail servers, to go offline for days during a wipe and reinstall. I have two installations of parabola-openrc and one installation of Gentoo.
OpenBSD and compiling from the ports tree is the next best option. Howver I'm using pkg_add for most packages currently and I haven't worked on a proper pf firewall to emulate endwall.sh as of yet, although this is a near term project, once I get my homework load under control.