
I first copied some (15) bot account names (there is a list on Lichess) and saved them in the GUI. Then you can automatically challenge the opponent. You can also go online in your browser and manually challenge individual accounts.
But it's also fun without pondering. I play with a polyglot short-book on 8 cores and use 6 men Syzygy. Engines are Stockfish derivatives, down here (PGN) Eman 7.31 played. My account is SolistaBot:
[pgn][Event "Rated Blitz game"]
[Site "https://lichess.org/UfXRwdPR"]
[Date "2021.07.15"]
[Round "?"]
[White "SolistaBot"]
[Black "TeamChelsie"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2435"]
[BlackElo "2483"]
[Annotator "lichess.org"]
[PlyCount "161"]
[EventDate "2021.??.??"]
[EventType "blitz"]
[TimeControl "180+2"]
[WhiteClock "0:01:10"]
[BlackClock "0:01:06"]
1. c4 {2} e5 {2} 2. Nc3 {0} Nf6 {0} 3. Nf3 {0} Nc6 {0} 4. e4 {0 A28 English
Opening: Four Knights System, Nimzowitsch Variation} Bb4 {0} 5. d3 {0} d6 {0}
6. a3 {0} Bxc3+ {0} 7. bxc3 {0} O-O {0} 8. g3 {0} h6 {0} 9. Bg2 {0} Be6 {0} 10.
O-O {22} Rb8 {0} 11. a4 {10} Nd7 {29} 12. Nh4 {14} Qf6 {0} 13. h3 {9} Ne7 {5}
14. f4 {2} exf4 {6} 15. Bxf4 {4} Nc6 {0} 16. Qd2 {2} Qe7 {16} 17. d4 {3} Rfe8 {
21} 18. d5 {3} g5 {0} 19. dxe6 {15} fxe6 {6} 20. e5 {3} gxf4 {0} 21. exd6 {2}
cxd6 {4} 22. Ng6 {3} Qg5 {15} 23. Nxf4 {3} Nce5 {15} 24. Qxd6 {4} Rbd8 {0} 25.
Qd4 {3} Nc5 {2} 26. Qf2 {3} Ned3 {26} 27. Nxd3 {6} Nxd3 {0} 28. Qxa7 {2} Rd7 {2
} 29. Rad1 {3} Kh8 {7} 30. h4 {3} Qe5 {1} 31. Rf3 {4} Qe2 {0} 32. Rdf1 {2} Ne1
{0} 33. R3f2 {4} Qe5 {2} 34. Qb6 {8} Nxg2 {2} 35. Kxg2 {2} Qe4+ {0} 36. Rf3 {5}
Rd2+ {4} 37. Kg1 {2} Re7 {2} 38. Qc5 {4} Rg7 {1} 39. Qe3 {3} Qxe3+ {0} 40. Rxe3
{3} Ra2 {2} 41. Rff3 {3} Re7 {1} 42. Rf6 {2} Kg7 {0} 43. Rexe6 {11} Rxe6 {1}
44. Rxe6 {1} Rxa4 {2} 45. Rb6 {6} Rxc4 {6} 46. Rxb7+ {2} Kg6 {19} 47. Rb6+ {2}
Kh7 {3} 48. Rb3 {3} Kg6 {3} 49. Kf2 {3} Kf7 {0} 50. Ke3 {2} Rg4 {2} 51. Rb7+ {4
} Kf8 {1} 52. Rh7 {2} Rxg3+ {4} 53. Kd4 {2} Rg4+ {9} 54. Kd5 {3} Rxh4 {6} 55.
c4 {6} Ke8 {0} 56. c5 {3} h5 {31} 57. Kd6 {2} Rd4+ {8} 58. Kc7 {4} Rh4 {0} 59.
c6 {3} Rh1 {0} 60. Kc8 {8} h4 {0} 61. c7 {3} Rh3 {0} 62. Rh6 {2} Rc3 {0} 63.
Kb7 {7} Kd7 {5} 64. Rh7+ {2} Ke6 {0} 65. c8=Q+ {2} Rxc8 {0} 66. Kxc8 {2} h3 {0}
67. Rxh3 {2} Kd5 {0} 68. Rh4 {2} Kc5 {0} 69. Kd7 {2} Kd5 {0} 70. Ra4 {2} Ke5 {0
} 71. Kc6 {2} Kf6 {0} 72. Kd6 {2} Kf5 {0} 73. Rd4 {2} Kg6 {3} 74. Ke6 {8} Kg5 {
0} 75. Re4 {0} Kg6 {0} 76. Rg4+ {0} Kh5 {0} 77. Kf5 {0} Kh6 {0} 78. Kf6 {0} Kh7
{0} 79. Rh4+ {0} Kg8 {0} 80. Rh5 {0} Kf8 {0} 81. Rh8# {2 Normal White wins by
checkmate.} 1-0[/pgn]