Several commercial applications are out there, like TeamViewer, which is free for personal and non-corporate use, and Edovia's excellent VNC-based Screens For Mac, offering multi-platform integrated control, including iOS and Windows client support. However, if you want to connect to a Mac remotely from another Mac with a high-fidelity, near-local desktop-speed connection, MacOS Sonoma has you covered right out of the box with its integrated and enhanced Screen Sharing application.