I need help with mixing and mastering

There are a few songs that the production is done that I would like help with mixing, I’ve tried to do a little mixing myself but have not been able to get as full of a sound as I would like, the low end seems a little muddy and I’m having hard time having the song translate well to other sources like my car, the genre is indie pop/ indie rock, some inspirations are Djo, Chappell Roan, The 1975 and others

Project detailsShow
What best describes the mixer you're looking to hire and your budget?
I'm interested in working with a very experienced mixer
What best describes you?
I'm an indie artist
Is your song ready to be mixed?
I need the mixer to do some editing, time aligning and vocal tuning before mixing
Do you need the song to be mastered?
I'll need you to master it too if possible
Do you have a hard deadline for delivery?
I don't have a hard deadline for this
How many total tracks do you have recorded for each song that needs mixing?
The song has somewhere between 10 and 30 tracks recorded that need mixing