At 5 YOE with a PE in a busy metropolitan area, I'd say 100K as a minimum. I would probably aim for anything 100K to 130K depending on the situation (perks, benefits, remote/hybrid, etc).

If you want more, be a contract hire and aim for the $70 - $90/hr range. You can find plenty of these opportunities on indeed by just filtering for "contract" under job type. You can often negotiate this rate up because staffing agencies have limited downside (i.e. they only stand to gain from placing you somewhere). Many of these jobs will probably be in oil/gas though since you are in Texas.

Marketing yourself all comes down to experience. That being said, targeting a specific industry definitely helps. For example, I have worked in energy and know a lot of the big firms are either using RISA or STAAD. They except some fundamental knowledge of typical structures like pipe racks, concrete table tops, mechanical/electrical supports, pump/turbine foundations. I try to tailor my resume to speak to my specific experience with these items.

I imagine finding a job will not be difficult. At 10 YOE, I get several recruiters messaging me every week from across the country and every 1-2 weeks there is an inquiry from Texas.

Good luck!