Which vein surgeries are available?

Which vein surgeries are available is really two questions, which surgery and whether surgery is called for at all. This page starts with the second, since it comes first.
The answer first
my.clevelandclinic.org states: "You may need surgery for venous disease if: Less invasive options haven’t worked for you." The condition it sets is that less invasive options haven’t worked, which puts surgery after other approaches and not ahead of them.
The detail that separates the two questions
Asking which surgeries exist treats surgery as the starting point. The source frames it differently, with surgery as the step that follows when something less invasive has not worked. That ordering is worth holding onto before you compare any individual operation. If you are around Tinley Park or Orland Park, ask your own provider what has been tried and what remains.
Overview pages on venous disease
For the wider picture of venous disease, see this overview from my.clevelandclinic.org. The same publisher also covers varicose veins and their causes.
The follow-up question the source raises is what counts as a less invasive option, which is a question to put to your provider.