I'm not sure you'll get that from any instance that allows politics, to be perfectly honest, as politics will tend to swamp all other discussion because it generates more traffic and discussion. I've spent time on microskiff.com (a boating forum), which is intensely right-wing, and it got so toxic they had to ban political discussion altogether. They have an open feud with The Hull Truth (another boating forum) which leans more left and attracts more voices who challenge conservatives. /r/Hunting was kinda conservative and generally policed itself, but that's because the mod team nuked anything that went off the rails.

Conservative-friendly spaces usually stay functional one of two ways: either they create a conservatives-only safe space or they refuse to let conservatives be overtly conservative. As someone who was a Reddit moderator for over a decade, you're kinda driving at the major gripe conservatives have with the open internet. They tend not to get a warm welcome not because they're conservative, but because when they flock together they tend to get disruptive and toxic very quickly. So then the warnings, removals, and bans come out, and the toxic crowd crows about being "censored", and the toxicity/pushback ramps up in an endless loop. It's the same song and dance everywhere they go, unfortunately. The conservative-sphere is just too infested with toxic conservatives for non-toxic conservatives find breathing room.

Additionally, Lemmy the platform has a steep learning curve which limits it to a more tech-savvy audience, and these kinds of forums naturally attract more left-leaning users, so I don't think Lemmy is the place you're going to find much conservative traffic in the first place.