In CFOP, I know two$-$look oll pll$,$

I wanna know what two$-$look

oll or any easy technique that

can always make me get case

like oll$21,$ I only want to get oll

So it's not about using like

FURU'R'F' or tell me RUR'URU$2$R$\text{'}.$

These algs certainly will get

cross on the top, but not case

like oll$21,$ I only wanna get oll $21.$

So if you have the alg or some

easy technique that can make

me always get case look like

oll$21$ not other case that have

cross. It is what I want to know.