Honestly I'd say OpenSUSE tumbleweed. Good distro, very up to date/bleeding edge, has YAST which can help newbies who are not familiar with terminal, has btrfs snapshots which saved my arse a couple of times. I don't wanna trigger Arch users, but I find it way more stable than Arch. It gives me almost 0 headaches. Sometimes when I get home I want my PC to just work and I don't want to spend my time troubleshooting it. It's not as customizable as Arch though. If you still find it a bit much for a starter distro, you won't go wrong with Pop_OS, it's a good distro imo, but atm it's too old. No clue when they're gonna release their next update with CosmicDE, but when they release it, it's probably gonna be in a beta state for a while.

I suggest Kubuntu, great ui, solid base, niche problems can be googled away

I suggest Manjaro. Arch made easy.