Yeah, yeah - you forget I have a day job?!
You’re getting too caught up in this. Bottom line is that you want to have gear that keeps you playing. The tube vs. solid state issue is one you should focus on, in all seriousness, in a few years after you’ve played consistently enough to have your OWN opinion about why tubes, or certain effects, etc are right for you.
Effects loop - think of it this way: putting an effect in between your guitar and the amp increases the amount of distortion going into the tone. If you are playing boosters, dirtboxes, or other effects that play with the distortion aspect of your tone, you typically want them in that spot.
If your effect is NOT supposed to affect the level of distortion, put it in the loop. So if you want a truly clean boost, no overdrive, put it in the loop. Time effects? Reverb–>Chorus –> Delay –> Echo? Loop. Phase or Flanging? Loop. Octavers? You get the picture (to be clear, for black belt tube users, they often put those effects in their direct chain because that extra overdrive sounds cool - but they are playing through BIG Marshalls that are nothing like the amp you are contemplating).
That’s a long winded way of saying: You pick where an effect goes based on the type of effect. If your small amp as a loop - cool; most don’t and can’t deal with effects well as a result. Yay you.
Digital effects vs. analog - again, feels like over-thinking. That stuff will start to matter when you hear that it is starting to matter. Do some research - go to places even like <gasp> Harmony Central, or read comments on Amazon or something, and get a feel for what the basic POV is about the options. If you aren’t hearing a consistent issue that raises your eyebrows - e.g., there was a small Marshall I was interested in for a bit, until a quick check online showed a consistent complaint about heat issues cracking the circuit board - you’re probably going to be okay. If you personally like the clean, hard rock and metal tones you are getting when you check out the gear yourself at the store, and the price is in your range - go for it.