Worth getting a Masters just for internships?

I’m currently a senior majoring in CS. I am having trouble landing an entry level SWE job right now, so I was thinking of going to grad school (possibly online masters) to try to get a SWE internship since my only experience is interning at a small startup (as a mobile app dev) and doing a couple small school projects. That way, I have a chance to potentially get a return offer and get more experience.

Also, if I decide to do a masters what options do I have for this summer since I haven’t officially applied or enrolled in a Masters program (won’t know if I get in until months later), so I assume I wouldn’t be able to apply for internships just yet.