Built a few little machines a few months ago with the Pentium Gold G5400, around £50 cracking little CPU. Just gone to order another...£79.99 :O, is there a Ryzen at a similar price that performs the same / better, I can't justify giving Intel £80 for a Pentium processor.
An AMD Athlon 200GE with a A320 chipset motherboard perhaps as an alternative...? Comparison LINK1 LINK2 CPU and board for just over £100.
It's a cracking CPU for the money. Four cores, iGPU and can potentially OC to 4 GHz on the box cooler (I think?) ... bargain!
If you plan on using the integrated Vega, overclock that first (and beware the no mans land) and squeeze the rest out of the CPU.