Ah oh no. Not the simulated pedals, I mean like a physical preamp pedal or DI. Granted, the LT25 has a FTSW jack which I’m assuming is for some sort of pedal…
For some reason, physical pedals seem “better” to me as a bright-eyed beginner who wants to waste money unnecessarily. Like I don’t even know what a darkglass pedal does, BUT I WANT IT (it just sounds cool). and tubes?? what even are those… Like could you simulate those pedals even? Surely there’s a way…
I’ll reiterate though, I know next to nothing about amp modeling, err chaining effects. At best I only have a few hours in the day to really indulge in learning 
All my knowledge is from at most a few days of watching youtube videos high on my couch.
I also PROBABLY have a fundamental misunderstanding of what a DI and a Preamp is/does but…