There is a mod that you can play with multiple race bonuses but if I remember correctly, there's a mod called import character from the data pack which you can load a data pack character from that data pack for example: If you a data pack of your own and have a insanely over power character you created you can load at the start of the game. So it works perfectly so just be careful picking the race you like they all have downsides. I hope this help ✋🇵🇭🤚