How did you do at those startups ? Your best bet is approach them again and ask for a potential role. Without some connections, it is extremely difficult to get a full tiem job right now in tech especially as an entry level person.
Some suggestions for you:
1. Get focussed on one stack. This is the unfortunate reality. You don't have enough real world experience to say "I can pick up any stack especially with AI". Thats what everyone else is saying. Too much noise. You need to separate yourself from the rest.
Get really really good at one stack (pick whatever you are already experienced with and double down). Then create a project or two in it (as real world as possible). Put it on a personal website. Something that shows. Don't just do the usual low quality "bootcamp" stuff. Those won't fly.
2. Approach any existing network of people you have worked with/for. You mentioned working at startups already. Start there.
3. Approach smaller companies/other startups (after #1 above) on Linkedin and make a specific case to founders directly. This is not hard. If needed, get subscription to Sales Navigator (if you can afford) and search for companies in the less than 50 employee range. Find their CEO/CTO and hit them up directly with specific message on why YOU and why you want to work for THEM. No generic BS. Be specific.
4. Be very very flexible. Mention that you will relocate for the job. Forget about Working from Home. Find whatever you can and move for it if needed. Show that you mean serious business.
These are some of the strategies that may help. It is very hard right now though. All the best.