I like Quantised Inertia[1] as an alternative to Dark Matter or MOND. The theory makes some testable predictions, matches existing data (for instance the flyby anomalies, EM drive)[2] and requires no tweaking or "fudging factors".
It's still fairly immature, so still needs work - it violates the equivalence principle and relies on Unruh radiation which hasn't conclusively been observed.
I feel like a better reference would be one or two of the journal articles the guy published...not having a physics background to judge the science on its own merit, I'd rather not read some guy's blog post.
Yes I concur.
I thought about admitting that i'm only referencing the author's blog posts was a bit "narrow", but it's also probably the best source for authoritative information on the subject. Literally "from the horses mouth".
There are the arxiv papers and some other reports (that all tend to link back to either the blog or arxiv) as well. Like you, I don't have a strong physics background, so find the published papers a challenging read.