Best? That is rather subjective. There is no one stop shop for this tbh.
Plastic kits for the period can be found, but are a bit limited, but more suitable ones are being released. In resin you have more choice, but also bits here and there. Bryan from the Hobbyden does some nice kits for the Israelis in that aspect, upgradekits for PSC halftracks as well and he is expanding. Liberation has quite a few miniatures for it but comms with them can be hard. He has stuff suitable for the Egyptians/Syrians too.
A few years back I would have said stick to 15mm for this period, but with what is coming in the future 20mm wise, there will be enough to keep you busy.
Do you have any particular battle or unit in mind?