Racing is a very large genre, but i do have quite a comprehensive list of games that fit into subgenres of racing:

Rally:

• Colin McRae Series (aka Dirt) - more arcade style than realistic
• WRC Series - Realistic
• Sega Rally Series - More arcade style
• Dakar Series (technically not rally) - semi-realistic, very unique

MX/Moto games:

• MX vs ATV series (ATV offroad) - Semi-technical, depends on game, can be a steep learning curve
• MotoGP - Technical, steep learning curve
• SuperBike (SBK) - Semi-technical, similar to MotoGP
• Monster Energy Supercross - Semi-technical
• Gp-1 Part II - Very accessible

Circuit Racers:

• Forza Motorsports - Semi-realistic, cars often feel "slippery"
• Gran Turismo - Semi-realistic, very similar to Forza, cars have better realistic responses
• F-1 Series - Realistic
• PGR - More arcade style

Arcade Racers:

• Need for Speed - Fun, depends on game, large variety, mostly NG+
• GT Advance - Retro, learning curve
• Split/Second - Need for Speed on steroids
• Burnout Series - Need for Speed but you slide side to side the whole time
• Speedracer - Very technical, high speed action

Kart Racers:

• Mario Kart - No description needed
• Garfield Kart - Skip Heavy
• Retro Kart Rush - MK clone for mobile
• SuperTuxKart - Very responsive driving
• Crash Nitro - Easy to pick up
• Every other kart game - Mario kart but slightly easier

Misc. Racing Games:

• Data Wing - Mobile racing game with an Arrow
• Trackmania - Platforming-style racer, technical
• Drone/Helicopter Racing games - these all tend to be the same, but are a very unique type of racer (Ex: SRX)
• WaveRace - Waverunner racing game, technical
• Barro - Arcade-style unity game, very fun and very easy

I am purposefully excluding games on this list, such as ford racing (or any brand-specific game) and many kart-racer clones (like sonic) as there are better alternatives to start with.

Play some Dakar 2 we need people lol

Mario Kart 64: Amped Up

automobilli Lamborghini is good if you like n64 but want more traditional cars.