300€ gaming pc

Here in Italy I am looking for a gaming PC with a budget of €300. I have often found these offers (from private people of course):

Intel xeon e5 2680 + rx5800 8gb + 32gb ram 2400MHz + huananzhi x99-qd4 + w10

AMD Phenom II X6 1090T + gtx1660 6gb + 8gb ram ddr2 + M3A78-CM

Ryzen 5 1600 + gtx 1060 6gb + corsair 16gb 3000MHz + ROG B350F + cooler master tuf 650w + hdd 750gb

I5 8500 + 5500xt 8gb + 16gb 2666MHz + hdd nvme 256gb hdd 1tb + 700W power supply

Consider that often with 50/100€ more (so 350-400€ in total) I find computers similar to these but with gtx1660 (ti or super) and sometimes i5-10th gen

The games I use are: bannerlord 2, total war .. so I play with 500-1000 entities on the field at the same time (sometimes shooter like battlefield 1)

Quale delle opzioni scritte è buona? Quale da evitare?

Is it worth spending a little more (350-400€) for a 1660super? I have a limited budget!