Whatever you do, don't even think that GraphQL will solve your problems. You were on the right track staying away from it till now.

I can't also advise enough to stay away from a typed language (Go in this case) serving data in a different typed language (gql). You will eventually be pulling your hair out jumping through hoops matching types.

After my last web project that require gql and go, I did some digging around, thinking, there has to be a better alternative to this. I have worked with jQuery, React, GraphQL.

My conclusion was that next time I will stick to turbolinks (https://github.com/turbolinks/turbolinks) and try stimulus (https://stimulusjs.org/).