Do your dogs wear collars at home and if so what kind?

I had some collars for my dogs that did not look comfortable, went all out and got Bluetooth ones that can light up (comes with huge battery), got pebble bee trackers to put on them (better tracker than apple but bulky), bought engraved tags from Wallmart JUST INCASE that tracker Doesn’t work, I once even got them flashy gold chains with diamonds… but I need something comfortable … I don’t like something that is going to leave a huge indent.. I’m on them a lot but also scared something will happen and they will get loose and would like a smaller tracker… also bells that each sound different so I can differentiate between them, and would like the collar to reflect… maybe different reflections to see them on camera lol both are around 20lb min pins ALSO they are microchipped. Also do you recommend metal or plastic for clasps? If you have found products please say the name of the product. Thank you!