You may find https://tibetan-fonts.e-tibet.org/ helpful to preview and compare various Tibetan/Bhutanese fonts.
Order: [Oldest -> Latest]
Please avoid at all cost from using monlamit.com. There's a backdoor vulnerability being reported redirecting users from monlamit.com ----> monlamit.net when downloading the font. Until this is fixed, please be cautious and you can rely on this Github hosted package.
The backdoor attack has been mitigated. Now monlamit.com download is originating from intended domain.