Need guide to build my new cheap hack build under $150.

I’m full stack developer I write cross platform apps(mobile, web, desktop), backend services & do little of photoshop sometimes. I’m currently running Catalina (10.15.3) [i5-4670] [16GB] [250GB 850 EVO]. The thing is HP stock motherboard limits me to upgrade for better a power supply or GPU (because of case size & PSU) & I don’t want to disturb my current workflow by doing motherboard upgrade & break something in the process.

As I was scrolling through used PC listings I found some cheap builds.

Core 2 Quad, 4-8GB RAM 160GB-320GB HDD ($40-$60).

• After a little search found out it’s not supported anymore.

i5 2500 8GB RAM 160GB-500GB HDD ($80~$100).

• Couldn’t find any success threads on Catalina.

i5 3xxx 8GB RAM 160GB-500GB HDD ($100+).

• Couldn’t find any good threads on successful builds.

• Found one thread saying intel HD graphics doesn’t work on Catalina.

Please recommend me supported CPU & Motherboard in my budget which supports Catalina. I'm gonna use new build mainly for testing & as backup. Also gonna make it triple boot (windows & Debian on different HDD) after successfully installing Catalina.