I don't know about Revolvers, but there are plenty of good semiautomatic BUGs on the market.
Personally, I chose a Ruger LCP. Small, slim, lightweight, easy to conceal, effortless to carry, and has been on the market for over a decade now, so no need to doubt that it works.
Some folks dislike the LCP, namely early adopters who had to contend with teething issues and seemingly cannot accept that the pistol has long since had all of the early bugs worked out, so they endlessly cite design issues which are no longer present/relevant. Others are those folks who apparently want to turn their .380 ACP Pocket Pistol into a poor-man's 9mm Pocket Pistol, so they load their .380s up with overpressure boutique loads like the so-called ".380 ACP +P" offered by Buffalo Bore, then are surprised when their LCP's slide rails crack under the stress of loads it was never designed to handle, and act like that's evidence of a design flaw. Then they'll recommend some heavy duty .380 Pistol that can handle such loads, which weighs more, is typically larger in every dimension, and is generally more expensive as well.
If you want 9mm power, then carry a 9mm Pistol, and accept that it's larger than a .380 Pocket Pistol for a reason, don't go messing around with overpressure .380 ACP loads that try to turn the round into 9mm. If you want to carry a heavy duty .380 ACP Pocket Pistol, then more power to you, but go with Standard Pressure ammo. It may be able to handle overpressure loads, but again, just buy a 9mm if .380 ACP isn't hot enough for you.