Lights that don’t use o-rings
To give a brand neutral answer: all the big light brands have at least some o-ring mounting styles now, but some of them still offer clip-in brackets as optional parts for the same lights. And there are still some around that come with that type, but it's the kind of brand-specific thing that changes a lot and so is off-topic here. So short answer, find lights you like or already have, and look at the spare parts options offered for them.