My standard lens is a Sigma 18-50 f:2.8.
But, depending on whether I go hunting landscapes or insects, I walk around with the Sigma 10-20 (nearly always at 10 and corrected in Bibble) or the Sigma 105 which comes to 1:1.

If I could start again, I'd prefer to change that last one into a Sigma 150 1:1. But, like James Brown sang: " The way I like it, that's the way it is." It'll do.

There are no Borg. All resistance is fertile.