I dunno about Solo, it would have artificial flavours and colours in it so you wouldn’t really get the same flavour from fresh lemons. But an alternate idea, you could look up recipes to make lemon cordial. Then mix with soda water to make a fizzy lemonade drink. Delicious!
Also maybe lemon meringue pie? I actually found the old recipe I used in my teens. But it might be more efficient just to make a large amount of the lemon filling only, or lemon butter. That's easier to store in jars and could use more lemons