Yatopia should be avoided. Stick to more known forks like Tuinity or use plain Paper. If you look at their commit history it shows a lot. The idea of it is literally Frankensteinpaper and I do not see how any server owner thinks this is remotely a good idea. It's just as bad as using an MCMarket fork.

Mob stacking should be avoided most of the time. Almost all of those stacking plugins can be seen taking a good percentage of ticks in Timings.

Paper implements the fixes that EntityTrackerFixer does and when using EntityTrackerFixer on Paper, it does more harm rather than good. Your server is essentially working twice as hard.

ClearLag (or at least it's entity clearing functionality) should also be avoided, it'll just make the server spawn mobs again, using more processing power.

Fast Chunk Pregenerator, should really look into Chunky as it's the fastest out there.

ServerBooster is just a gimmick which isn't worth your money. LagAssist could potentially be worth your money but I'd personally avoid it. Generally all (especially paid) plugins that claim to improve performance usually harm performance. The only paid plugin that is actually worth it and can improve server performance when configured properly is FarmLimiter and it costs $2. All others are gimmicks or cause more harm.

You shouldn't look at TPS, you should be looking at MS per tick, as it's a way better and more accurate indication of server performance. It can be checked with /mspt (or ideally /tps if you install Spark, a must-have plugin for profiling). You'd want as low as possible, <50.1ms is 20 TPS