New to the world of historicals and largely confused

Hello! I’ve been a 40k player for quite some time but am looking at historical miniatures out of an interest and fascination with all things miniature, and all things historical. I’ve noticed Perry miniatures as a stand out but I keep seeing cool written battle reports of various time periods and am left wondering where to find the rules and minis for such games. I’m specifically interested in the Victorian era through the interwar period and the Russian civil war. Are there any good games in these periods? Are there notable miniature producers for such games? I appreciate any guidance you can provide and I do hope these aren’t dumb questions. Thank you very much and I look forward to hearing your responses!