My E36 M3box cafe CB has a cheezy LED light strip in the rear with the built in signals. It's barely noticeable at best. My front signals are crappy bolt-on Amazon units, one of which has already failed and I can't replace the bulb. I would like to be seen via quality indicator lights, that would look good on a classic Honda build.
I see dozens of options on Revzilla. Surely one of them would work for you?
Personally, I think the Clink-n-Ride quick release turn signals are a neat idea.
motogadget and rizoma seems to have the power and look, but $$. I too have been trying to find the bridge between hokey ebay/amazon china specials and top tier led lighting.
Find factory lighting options? Meaning LED, off a new bike.
Dirt bike guys have a lot of stuff. Same ratios of good to crap, though.
Motogadget makes nice stuff. I put a set of Kellermann Bullet 1000 noon my Ducati GT1000. Pics in my thread here. The Kellermann stuff is very nice too. SpieglerUSA has a nice collection of lighting. I think Revival Cycles had some nice options too. You might want to look at Bike Exif and Return of the Cafe Racers web sites for examples too.
If you're going for small and inexpensive, Revival sells these small taillights. They're basically the chinesium, but coming from Revival makes me at least feel like they'll take care of me if I get a dud. https://shop.revivalcycles.com/led-supernova-brake-and-turn-signal-lights/
If you're looking for the easiest swap, maybe try trading the strip light you have for another to see if it's brighter? I've read that all those strip lights are not the same brightness. Revival sells one that has good reviews. https://shop.revivalcycles.com/flexible-turn-and-brake-led-tail-light/#product-reviews
Morimoto is trying to break into the motorcycle world, and the Pindicators they sell are very small turn signals similar to the Motogadget M-Blaze Pin but waaay cheaper. A pair of the Morimoto should be $35, but you only get one M-Blaze for $45. Quality is really nice and does some trick things for running lights if you want to go that route. I've got a pair of these on my bike. Crazy bright. https://rgbhalokits.com/products/morimoto-mc-pindicators
I just went through all this on my own bike, so I feel like I have a handle on what's available. I'm in the process of fabricating my own tail lights from some red halos I bought from Super Bright LEDs. I'll post when I get them sorted.
I've always had good luck with Rizoma stuff.