The new machine

Hello Guys! I just got a pic from my dads workspace with 4 gigs of ram and a pentium g860 3Ghz and a 200 GB HDD and intel hd 3000. What do you suggest which MacOS would be good for this hardware. If I really have to do it I have a Radeon HD 5450 passive cooling variant but I’m not 100% sure it’s still working. Thank you for any help😇