There are some really nice templates out there for Latex... I need to look at xLingPaper and then take a look at what I want to do and if I want to create a look-alike template in LaTeX. All things considered XLingPaper still pulls data nicely from FLEx. But I haven't used FLEx in a bit.

I really like CharisSIL and Linux Libertine. ACM two-column format really looks nice, in Libertine, but I haven't checked the linguistic symbols with it recently.

I'm a big Chicago (autor-date) fan...

https://abidsikder.com/blog/chicago-style-citation-and-bibliography-in-latex.html
https://ctan.math.washington.edu/tex-archive/macros/latex/contrib/biblatex-contrib/biblatex-chicago/doc/biblatex-chicago.pdf
https://www.overleaf.com/latex/examples/the-chicago-citation-style-with-biblatex/pdqqrmwtdqpc
https://tex.stackexchange.com/questions/6275/how-can-i-create-a-chicago-manual-of-style-formatted-document-in-latex
https://www.overleaf.com/latex/examples/bibliography-chicago-author-date-doi-suppressed/drrhkmbbmtbx

https://www.overleaf.com/latex/examples/bgu-endnotes-chicago-history-dept-template/hqycfypwjbwy

The taylor & Francis Interact template is really nice
https://www.overleaf.com/latex/templates/taylor-and-francis-latex-template-for-authors-interact-layout-plus-chicago-reference-style/jfkyqxkxqhrs

https://eddelbuettel.github.io/rticles-gallery/tf_demo.pdf
https://www.overleaf.com/latex/templates/taylor-and-francis-latex-template-for-authors-interact-layout-plus-chicago-reference-style/jfkyqxkxqhrs.pdf