Some ideas of names of characters. I'm not sure if they already have a parody, but I'll post it anyway. Post your ideas below in the comments :)
Arsenal[]
2 - Mathieu Debutcher (he uses the uniform of a butcher with blood and a knife)
16 - Robber Holding
17 - Alex I-am-a-woobie
22 - Jeff Reine-Adelaide (he is Queen Adelaide)
27 - Konstantly Mavropanos
30 - Away InEngland
32 - Chubby Aipom (he is an Aipom )
Chelsea[]
2 - Arsenio Rudiger
21 - Davi-not-Diego Zap-a-Costa
27 - Andreadful Chirstessen
33 - Emerson Palmtree (he is a palmtree)
36 - Kyle Scout
37 - Edinamordo
44 - Ethon Ampherehairdu
66 - Giveon Serling
70 - Collums Hurt-Odoi
Liverpool[]
12 - Joe NotGoodDefendermez
26 - Andew Robertson
28 - Danny Kings
29 - Dominic Goalanke
32 - Joel Mustryit
34 - AHno Bogoaldan
38 - Jon Facenagan
52 - Danny Wrong
53 - Elvie Ejaria
58 - Ben Willburn
59 - Harry Wilson (he's the ball Wilson)
66 - Trient Anotherdefender-Arnold
Manchester City[]
3 - Danilame
19 - Leroy Saneman
20 - Beardnardo Silva
22 - Benjamin Wendy