I have a lot of experience with the live sound mix and my OG Helix. If you want to "cut" through the mix, there are several ingredients and lack thereof to achieve that.
So number one: reverb sounds good at home, sounds good when you record your guitar directly, but live it buries you and make your playing unintelligible. If you have any type of hall reverb, it should be lowered to a minimum, or removed. Concert spaces have natural reverb, so you really do not need any, except for special effects, or for that drippy reverb sound that surf music requires. Instead of reverb, I use subtle ping-pong delay that bounces a few times left/right, but does not cover up the initial attach of the note/chord. There are also "ducking" reverbs that let the note ring out, before applying. Also for regular reverb, the "pre-delay" parameter is very useful to be able to hear the initial attack of the note, without which it becomes a mess.
For live concerts, there's a separate independent mix done on purpose--to represent what it sounds like in the venue, by adding all the reverb, etc back to the sound. And I stress, it's an independent mix from the actual FOH sound mix. If a concert is broadcast on TV, there are 2 sound mixers working independently of each other.
So while reverb sounds good and can make your playing sound smoother and better, for live use it's not to be overused. I've listened to board mixes of my live concerts where I played and the guitar doesn't necessarily sound great direct. But that's the whole point--your guitar's sound needs to work for the venue's acoustics, not to sound great as a concert recording. I've also reviewed concert footage that people have posted from their phones, and confirm that that it sounded great with plenty of ambiance.
Number two: for solos my approach that has worked for me is always boosting the 2K frequency with an equalizer in my chain. Turning up the volume does not work due to limiters, and whatever else the sound system has. When I needed to really cut through the horns and all that stuff, I boosted it by 10 db for the solo snapshot. Nowadays I go from 2 to about 6 db. Some songs need a deafeningly-loud solo, some don't. So I play by ear. Also depends on the pickups that I use. Single coils already sound pretty glassy, so further EQ-ing is going to sound extremely piercing if overdone.
You should not have too much of that 2K frequency, as it is known to be headache-inducing. And when boosting this frequency you will definitely be heard. In my old band I didn't constantly noodle all over the place, I had a few concise solos and that's when it was used. Also I've used it for clean lead lines as well, think "Day Tripper" by the Beatles. That's all 2K, but it's not constantly hitting you over the head, I'd never strum chords with that sound....