https://www.yapms.com/app/?m=6xpjMy county map prediction, though it's likely I may be taking the south Texas trends for granted. Probably depends on the messages Beto campaigns on, because if he's gonna campaign the same way he did for president then it's possible he loses ground in some the more conservative hispanic counties.
Also I think Abbott keeps the suburbs and holds onto Collin, Denton, Tarrant, and Williamson, although loses Fort Bend. Hays is barely even winnable for republicans anymore though he can certainly make gains there. Remember this is based off the 2018 results which is why Tarrant, Williamson, and Fort Bend were red.