Hi Suzi_Derkins,
A few options you can look at, though one thing to consider first if you're into noise isolation & sound quality, regardless whether its earphones/in ears or headphones is good fitting ear tips &/or ear pads.
You can have the best sounding earphones/in ears &/or headphones in the world but if they don't fit well, it's not much point, you'll be surprised how much this is a thing.
Also if your music source isn't at least CD quality, then it's not much point either how good your head gear is either, also a ridiculously overlooked thing...
If possible, always demo with your own source before making any decision.
Foam generally always wins over silicone for noise isolation in earphones & in ears though it depends how deep you want them in your ears as silicone generally due to the oval shape can be inserted deeper though is a personal choice on how comfortable that is.
Comply Foam is considered among the best foam & readily available for earphones/in ears.
They even have a foam range called Isolation which is basically Comfort series with good to very good noise isolation, generally blocking up +25 db depending without any audio.
This is generally better than most basic hearing protection, both ear bud & ear muff style which is generally rated up to +20 db though closer to 15 to 18 db.
For silicone, Spinfit is good but these need fairly deep insertion in the ear to be effective & some people aren't comfortable with that litterally & sometimes with music or any audio playing, it might be easy to be unaware of one's surroundings.
Regardless, whether foam or silicone, good fit is always important for good noise isolation so if possible, always try different sizes if you can, which may mean to get that better isolation seal, you may need smaller earbuds, this also includes in some cases, different sizes in either ear as everyone's ear is different.
For example, some people prefer a smaller size in one ear and a bigger size in the other.
It's also why some go to the extent for custom fitting ear buds which may be extreme in your case but I digress.
Given your budget, & I'm guessing you're in the US then here are some reccomendations, if not, some of these still work.
Also if there is a pro audio shop near you, you may be able to get some of these at lower than suggested retail.
Earphones/ In Ears
Meze 12 Classics
Shure 215 SE Blue (All Shure earphones now have bluetooth option as separate cable or package)
Audio Techica E70 (Best rated isolation for Earphones with the right ear buds, recommend Comply Isolation)
Headphones
Sony WH 1000XM2 (Best Noise Cancelling currently around with Bluetooth)
Oppo PM 3
Audio Technica MSR 7
Please note, as I own all of these, I can recommend them without reservation nor do I recommend anything I don't have experience with.
E70 is my everyday.
Hope this helps.
