Looking for a recommendation for a tubeless repair kit.

I just use a cheap generic tubeless repair kit (worms), they do the job, but there are plenty of more expensive (& easier to use) kits available*, some that fit in handy bike mounted formats (inside the bars). It’s a take you choice time, no specific ‘leader’ in the field I’m aware of.

*Sahmurai, Lezyne, stans, Muc-off

dynaplug or Stans dart are the expensive on the go products that work well..

if you go down the dynaplug route for mtb tyes
get one of these
Dynaplug Megaplugger Tubeless Repair Tool
https://www.leisurelakesbikes.com/images/dp0027_1.jpg

as it comes with both mega and standard sized bullets
(the standard tool wont fit the mega pipe holder as its not a screw thread)

or £4
https://www.wiggle.co.uk/lifeline-tubeless-repair-kit

go a new gp4000 that exploded, makes the best patches ever for fixing tubeless using just normal rubber solution. Should last me a couple of centuries.

Just fixed my slow punctured G-One with a Hutchinson patch kit, Best thing about it I’d say – the glue still worked as it’s been sat in the draw unused for a good year or more. Velox one on Amazon would be fine.
For on the trail I use (well, I carry) a Dynaplug but the worms work ok