I am new to self hosting and just want to know whats out there for me to discover

Hey all, this is my first post in this community and I was really just hoping to learn what was out there that I could be doing since I just started self hosting recently this year. I learned a lot these past couple months and am just curious what are the absolute best tools I can implement in my current server to make my life easier/better. I am a fan of the *arr stack but I only use a couple and I have a navidrome server set up. That's about it for now. Any and all pointers would be wonderful since I am relatively new to this community and would love any and all suggestions available. What are the niche apps you can't get enough of. Jellyfin plugins. Honestly any tips you can give I am all ears for <3

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