It is more limited because there is not as clear a standard. Gateron is generally the best low profile option but others exist like redragon, kailh, and cherry but the cherry won't work in the same socket.
https://www.gateron.co/products/gateron-low-profile-mechanical-switch-set
https://www.kailh.net/products/kailh-choc-v2-low-profile-switch-set
https://www.cherrymx.de/en/cherry-mx/mx-low-profile/mx-low-profile-speed.html