Ideas for lens when go scooting diving first

One decade now with two lenses, Canon EF 8-15 and EF 100mm macro.

But sometimes you need something that will be able to catch the breath of a new site and then to redive for wide angle and macro.

I see that > https://www.ikelite.com/blogs/reviews/canon-rf-s-18-150mm-f-3-5-6-3-is-stm-lens-micro-review-results .

I ask from Onderwaterhuis.NL, my supplier in uw photo staff, to see if we can find solution for Nauticam x Canon R7.

Other ideas for such lenses that can be used around (and sacrifice the wide angle side for the beginning)?