None of the earplugs in this guide are supremely expensive, relatively speaking. So if you try one set and they don't work, you're not tied to them forever. Just try a new pair. That said, the benefits of trying sets from the higher end of the scale do bring added benefits like higher noise reduction ratings (NRRs) and - importantly - comfort for extended sessions. It's all very well reducing decibel levels to a satisfactory range, but then your ears ache because you have cheap buds in them.
Comfort and accurate noise should be your two highest priorities here. In our opinion, try a few pairs out. Try some foam ones, silicone ones, fitted ones, earbuds. It’s all a learning curve, and a very personal one at that - but as long as your hearing is protected, that’s all that matters. And, if you end up getting through a few pairs in your tests, you'll end of with backups for yourself or your forgetful bandmates.