Thought I’d post this little video I did showing how to set your toe- in using string
A racing buddy of mine showed me this and I’ve used it tons of times. If you take your time you can get it pretty much dead on. Something I didn’t mention in the vid was that you should figure a way to lock the steering wheel. I clamped a vice grip on the steering shaft and used a piece of heavy metal to hold the vice grips against the frame. I usually pull the car in and try to come in straight. If your wheel is crooked you just use the adjusters on the tie rods and move them equally
If the link doesn’t work search string alignment on YouTube
https://youtu.be/cgT71vW2Kjk