Note: this is a non-exhaustive list, as I can't think of all the songs in memory that I really like. I don't want to spam because I know we all have busy lives (myself included), and I don't want to have to think about too many things at once for the moment.
Winx Club soundtrack:
Now That It's Me And You
A Magical World of Wonder
https://www.youtube.com/watch?v=LKPTGOOT9jE
https://www.youtube.com/watch?v=VrZxIhb3aEs
Acid Black Cherry - YES
https://www.dailymotion.com/video/x92c2rw
Boys Like Girls - On Top Of The World
https://www.youtube.com/watch?v=DoIDz8k9fZo
FFXIV Endwalker trailer music (I know this one's more of a medley at parts)
https://www.youtube.com/watch?v=pmP-1zELQZg
My main intention is to be able to write a song that I can use for more than just personal enjoyment (main thing I resent is that I can only use them for that, if they're even available on their respective platforms at all), based on these. I tried approaching someone about this, at least for a fresh pair of ears, and they described the following to the best of their ability, with music theory commonalities:
Lots of major scales used (Ionian, this was not obvious to me since I find more than just basic music theory a bit intimidating)
Mid-tempo, around 120 bpm
Rock sounding with lots of guitar
4/4 time signature
"Simple drum pattern" (alternating kick and snare perhaps)
I wonder what other ideas you have, because I'd eventually like to get the ball rolling with creating my own song based on this that I can use freely for my other projects. I would ideally prefer a more detailed analysis of the music theory. I admit I fear that the "magic" will be lost if I analyzed them, or at least I feel I may benefit from a fresh set of ears with analyzing these songs.
With regards to using LMMS itself I'll figure out my own way through it and use the appropriate forums. Thanks for your consideration in advance.