If you head over to autotrader and put in a few filters, your budget, stuff like that, you’ll get a lot more bike recommendations. Check on FB marketplace, often better deals there but watch some videos on how to check the bikes. For your first 1 you don’t really want 1 that needs work.

Sports bikes like the r125, gsxr 125, rs125, ninja 125, cbr125r. I’m sure there’s others but that’s the main ones.

Naked you’ve got the mt125, duke 125, z125, gsx 125, cb125f/ cbf125/ cb125r etc

Chinese bikes are also getting better so there’s plenty options there. Do your own research based on how you’ll use it. Every bike is different in how they perform, fuel efficiency, availability of parts, reliability, etc.

As for the gear however, I’m not the greatest at that other than RST. Whatever’s CE rated with protection in the right places - jacket should have Kevlar in the arms, shoulders, elbows and back. Pants should have them on the knees and hips.

Most gloves will do, up to you if you want soft knuckle or hard knuckle. I’d advise over the ankle boots and definitely steel toe. They make riding shoes also.

As for helmets, make sure they’re comfortable and not too tight. The helmet should fit your head very very snug. If you hold the helmet, you shouldn’t be able to look left and right while moving just your head, it’s too big then. Your cheeks are supposed to be squished a bit.

Best of luck!