Search for FastPanel. Open Source simple and fun hosting panel.
I am using with 4 gb 2 vCore on Vultr with 20 wordpress websites, 1 - 3% load CPU and 30% memory
Powerful & Easy-to-Use Server Control Panel – Create websites in clicks, manage unlimited domains, track real-time server stats, and enjoy 24/7 support. WordPress-friendly, multi-language, and no vendor lock-in!
fastpanel.direct
I'm try vestapanel, directadmin, after change prices on cPanel (Octuber 2019) but, FastPanel is very very good.