Lemmy is all I use, and since it's so small I just browse /all and when I keep seeing subs I'm not interested in (or a language I don't understand) I just block them so I don't see them anymore.
Then I've instance blocked a couple places because of how their mods/admins act so I don't accidentally stumble into a sub from that instance.
You could try to curate a list of subscriptions, but I just don't think Lemmy is big enough for that yet, and you'd miss new subs.
I use the web client, but it should be wherever your block list is. Webclient you have to manually type it in, there should be three sections:
Accounts
Communities
Instances
So if you can't figure it out in your app, you can just sign on via a webpage to block instances and that should effect the app since it's about your account and not the client.
I don't see a way to do it in Voyager's settings, but if you go to lemmy.world in a web browser and go to your settings, there is a "Block" tab at the top next to settings. Go to that and you can block users, instances, or communities.
I look through my subscriptions first and then through all but I block magazines where I have no interest in the topics or are in a foreign language relative to me.
I do Lemmy by subscribed/new until I get to something I recognize. I scroll Facebook a bit to see what my distant family is doing and to see what's going on in the work/industry/hobby groups that I follow. I check Facebook marketplace local to see if there's anything cool. Then I read the news for local stuff and to see what didn't get posted here. Then if I'm super bored I go back to Lemmy/All
I search YouTube for how-to videos or specific songs. The only time I really take recommendations is on music - I like to pick the recommended song that's least similar to the song that I just listened to and keep doing that to see where it takes me.
I don't use social media except Lemmy. I refuse to eat bad food, so why would I consume bad content? And stay away from commenting sections like YouTube and Steam unless you like brain rot. People be peopleing.
I open Jerboa and start scrolling with it showing me everything sorted by newest comment so only the posts people are talking in show up at the top. When I see something interesting, I open it.
I do a combination of new, active, hot. mostly just sort by new since the other options are iffy on the sync client, its not like there are so many posts to sift through when I surf using new lol