It's the new mech armor
LEGO Marvel Iron Man Mech Armor 76203 Building Kit; Collectible Mech and Minifigure for Iron Man Fans Aged 7+ (130 Pieces) https://www.amazon.com/dp/B09FN85J68/ref=cm_sw_r_apan_i_E09X70ND6JFDB13RSVZF
There's a smaller /cheaper Version (B018VEBHLC) and a larger size as well (B07K7W4TQQ) if those fit your needs better
On Amazon, DisplayGifts Bulilding Block Toy Minifigures Miniatures Solid Wood Frame Glass Door Display Case Wall Mountable Cabinet Stand Door Black https://www.amazon.com/dp/B083VRMD5B/ref=cm_sw_r_cp_api_glt_i_Z37EZHCT336Q5HFWZZW8
Hmm.. yeah of course ^^
So Kingpin torso is from the DC CMF Joker and the head is Cornelius Fudge's
As for Rhino the head is Gimli's.. and for the rest, you can take a look on Mecabrick, right here
LEGO Minifigures Marvel Studios 66678 Building Kit; an Awesome Gift for Fans of Super Hero Building Toys; New 2021 (6 Pack) https://www.amazon.com/dp/B09313L1C9/ref=cm_sw_r_cp_api_glt_fabc_PXN7GK0TR1P0N761YGMH?_encoding=UTF8&psc=1
LEGO Minifigures Marvel Studios 66678 Building Kit; an Awesome Gift for Fans of Super Hero Building Toys; New 2021 (6 Pack) https://www.amazon.com/dp/B09313L1C9/ref=cm_sw_r_apan_glt_fabc_E37216KB15NQN9QSV50Q