Of course this depends a lot on:... What are some suggestions?
It would be helpful to know what type of camera you are using. Crop or full frame?
This is so true it’s ridiculous ^^buy a lens for a purpose, don't buy one and then go looking for a purpose. You can blow a lot of money and still not have what you need.
And within a discipline you can have huge differences in requirements. Most of the macro I do is in my garden, so MP-E65 and 100mm are great for that, from small things like mites to larger things like dragonflies. But walking 5 minutes and entering farmland I'm suddenly reach limited. So a 0.31x or better long lens (100-400L or RF100-500) is now on the list.This is so true it’s ridiculous ^^
Took me a few years before I realized this ;
if you’re not shooting landscapes or macro with the gear you have now, you’re not suddenly going to go out and do it just because you buy an UWA or a macro lens.