As you mention yourself, i got few point to consider
1. Lv mid tp high beginner, clear hit reach is only 3/4 court length.
2. Old injury
3. No playstyle
4. Any brand
Well… Its quite easy i guest, unless you live in the deserted location. Just go to any badminton shop nearby, swing test it physically & choose the few you feel comfortable swinging & pick the prettiest paint.
No need an extra headace for shipping oversea.
Also i would suggest skipping the expensive one. Mostly they are more demanding to use. Cheap racket not always mean they are bad. Just use lower quality material which mean easier to bend or the other words easier to use.
Like for example some i had use (but not sure if they still available)
Victor TK HMR, very easy & fun to use.
My old racket Lining MP UC5000. My lazy racket when im tired & play fun happy stroke games with friend.
Just enjoy the games friend, dont be picky, at least not now