Pascal-like syntax seemed to have been popular around the time. Outside the Writh languages(Pascal, Modula, Oberon) and Ada, I was reading about CHILL[0] the other day, which is supposedly similar to Ada, but was rather domain specific. Sadly I don't think any modern, free implementations exist.
Indeed VHDL is supposedly based as much as possible on Ada syntax. Naturally you would have several differences due to the purpose of the languages, but they are _very_ similar IMO
[0]https://en.m.wikipedia.org/wiki/CHILL