to start the game, i really recommend the ridged drake (they get to level 150 max, by the way), because they are good at traveling, fighting, and carrying stuff. it all depends on what you are looking for, because there are some good ones because they fly and others don't but work much better when it comes to tame other creatures.

the worm might be the best option for what you want, because it is really fast (but with bad turning radius), has a big damage resistance and can spit "net" proyectiles wich work exactly like the ones from gen 2, but they make the target take less damage during the "netted" debuff. the worst thing is how rare it is and the developer said that, it is even more rare for them to spawn at high levels.

the longgui is EXTREMELY resistant to damage (95%) and that is the only thing it has. you can tame it passively without a risk because they are neutral, they like cakes the most and if you ride it when it's not tamed and without the buff you will enrage it.

almuldon is also good because of the slowing mud, but it is also rare.

all of the above are max 150 tames.

to know if a creature can reach level above 150 (they can reach 190 if they get above) you need to see if it is a dragon or a wyvern creature, almost any kind of wyvern-like of dragon-like creature of this mod can reach level 190, so if it has wyvern animations or dragon animations like the banshee (also a good creature to start on this mod) then it can reach level 190.

i will leave you a pathetic list of creatures that can reach level 190, from what i've seen so far.

1.Skelltor

2.Atal-arka (this one can reach level 208 for some reason)

3.Razortooth

4.Pesutobeara

5.Fatalos

6.Miralosaur

7.Bahumat

8.Alarion

9.Pangolin wyvern

10.Banshee

11.Thornnail nadder

12.Zetsumetsudoragon

13.Leatherback tortugan (not 100% sure)

14.Ymir

15.Tiodrio doesn't reach 190 but i wanted to mention it because it has wyvern animations and all (is also a good creature to start, because it is a passive tame, super friendly and gathers honey without risk)

16.Bronze wyvern

17.Geobreaker

18.All bosses of the mod

19.Mira

20.Saurian brute wyvern (this creature has a very rare tek variant)

21.Leviathos

i can keep going but i don't want to annoy you.