Need Help: 240v in Garage?

Good afternoon everyone!

I'm looking to buy a new air compressor and am wanting to make sure I can support a decent one as well as be able to run a decent welder with 220/240.

My dilemma is I know basic wiring but not sure anything above a standard wall receptacle or light switch, lol.
I'd like to put a 220/240 plug or two in the garage but I'm not sure if it would support it. The bottom of the breaker box says 120/240v but I'm not savvy on capacity stuff.

Here's a couple of pics of the inside and outside. Will I be able to wire in this outlet?
Much help is appreciated!!

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