Need help fixing wall-mounted shelves securely installed

I'm looking for a skilled handyman to install and fix a set of wall-mounted shelves in my living room. The walls are plasterboard, and I want the shelves secured into studs to ensure stability. Please bring appropriate wall anchors and drills, and advise on best positioning. I’d prefer a neat appearance with level shelves and clean cable management if needed. The job includes measuring, marking, mounting, and testing weight capacity. Experience with floating shelves and brick or masonry walls would be a plus. I can accommodate a morning slot and will provide the hardware I already have, but I’m open to recommendations if adjustments are needed.