Looks like the Daily Mail's deputy political editor has a better list of supporters on his twitter feed here - he's up to 124 in support... Patel was 122 apparently.
@Randal'Thor impossible to tell really, she was in government for a spell under Theresa May, and she's sitting around the middle of the field in the Conservative home cabinet approval rating table... Really depends who the successor is.
Actually, that link's from April, the latest rankings have her near the bottom.