Full Windows/Apple desktop/notebook and a separate inexpensive webcam and stand separate from the notebook/desktop is STRONGLY preferred.  These days with Zoom music lessons devices go in order from best to worst listed below:

Macbook/Mac (I have used both PC and Mac and I know personally that this is the best)
Windows 10 PC (Does the job well too, Macs just offer a little more bells and whistles)
iPad (latest generation, sound quality is poor do to lack of adjustments)
iPhone (last 3 generations, but you can not see screenshares of music because it is too small, sound quality is poor due to lack of adjustments)
Chromebook/Android Tablets (They do not have the adjustments to sound quality that the others do and wifi is weak in Chromebooks)
Android phone (unacceptable for music lessons, has no sound features, very spotty internet, small screen)

This is not to be picky but hey let's face it, there can't be any piano lessons if I can't hear your little one's piano.  We can try anything but just a heads up first.

BEST OPTION:
Real piano that is in tune.  Local piano tuners can be googled but just be aware that Grandma's old Spinnet sometimes costs more to fix it then it would to just buy a 88 key weighted digital piano but not as expensive as buying another new piano.  If you have one.  Fix it and ask the tech how to maintain it.  They are super worth having, at least this piano guy thinks so!

https://www.freeholdmusic.com/product/yamaha-b3-48-upright-piano/

2nd BEST OPTION:
A weighted (not semi weighted) 88 key digital piano, stand and bench package.  Be careful of something called a controller.  It has no sounds and requires a computer and software to operate.  Digital keyboard or piano should be there in the title.  Eventually, not now though it will need a sustain pedal.  They can be added to most later for very little money.  Please see the bench and stand frequently bought with it as well.

https://www.amazon.com/Yamaha-Weighted-Digital-Sustain-Amazon-Exclusive/dp/B01LY8OUQW/ref=sxin_14?asc_contentid=amzn1.osa.b8effbb4-553b-4932-9ec2-42692e3507da.ATVPDKIKX0DER.en_US&asc_contenttype=article&ascsubtag=amzn1.osa.b8effbb4-553b-4932-9ec2-42692e3507da.ATVPDKIKX0DER.en_US&creativeASIN=B01LY8OUQW&crid=1ND1OI4VWBCDA&cv_ct_cx=digital+piano+88+key+weighted&cv_ct_id=amzn1.osa.b8effbb4-553b-4932-9ec2-42692e3507da.ATVPDKIKX0DER.en_US&cv_ct_pg=search&cv_ct_we=asin&cv_ct_wn=osp-single-source-earns-comm&dchild=1&keywords=digital+piano+88+key+weighted&linkCode=oas&pd_rd_i=B01LY8OUQW&pd_rd_r=322534d3-827f-41d5-8406-d778d5bc3332&pd_rd_w=tiQU6&pd_rd_wg=mm7Tf&pf_rd_p=8065c57d-81c6-4bce-844a-e686936787b8&pf_rd_r=B08GAF0P1FRR64HK4DF9&qid=1628701711&sprefix=digital+piano+%2Caps%2C217&sr=1-2-64f3a41a-73ca-403a-923c-8152c45485fe&tag=mashcontent-20

3rd Best option (certainly not a bad thing for beginners though!)
A touch sensitive keyboard, stand and bench package.  Touch sensitivity is a must.  If it doesn't say it in the description, it doesn't have it.

https://www.amazon.com/Casio-Portable-Keyboard-Instructional-Polishing/dp/B07BN1RVWK/ref=sr_1_2_sspa?dchild=1&keywords=Casio+keyboard&qid=1628701668&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzTUw3T0pSTTdVTFhZJmVuY3J5cHRlZElkPUEwNTM0MTgyM1ZDRTkzNEVGRkdTTCZlbmNyeXB0ZWRBZElkPUEwNjE1ODkyM1E1NDlOM0JKOFU4UiZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=