I recently switched to an acoustic-electric ukulele and I'm quite pleased with it. In terms of brands, Kala and Lanikai have some distinguished options that offer a solid balance between quality and price. The sound quality when plugged in is remarkably clear, though it does slightly differ from its acoustic sound—more amplified and crisp, but still very authentic.
When choosing one, pay close attention to the pickup type. A ukulele with a piezo pickup tends to deliver a more natural sound compared to magnetic pickups. Also, ensure the build quality is solid; look for one with sturdy tuning pegs and well-finished seams. This will affect both its durability and the acoustics, whether played plugged or unplugged.